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* src/select.cxx (select): Changed mechanism for calculating select timeout to avoid possible race conditions between this code and the timer DSR.
author nickg
date Fri, 09 Aug 2002 17:10:21 +0000
parents 6eb55882e01c
children 9fc33f5be435
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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281
fc52fa818b5f * src/select.cxx (select): Changed mechanism for calculating
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1 2002-08-08 Nick Garnett <nickg@calivar.demon.co.uk>
fc52fa818b5f * src/select.cxx (select): Changed mechanism for calculating
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2
fc52fa818b5f * src/select.cxx (select): Changed mechanism for calculating
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3 * src/select.cxx (select): Changed mechanism for calculating
fc52fa818b5f * src/select.cxx (select): Changed mechanism for calculating
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4 select timeout to avoid possible race conditions between this code
fc52fa818b5f * src/select.cxx (select): Changed mechanism for calculating
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5 and the timer DSR.
fc52fa818b5f * src/select.cxx (select): Changed mechanism for calculating
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6
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7 2002-05-29 Jesper Skov <jskov@redhat.com>
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8
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9 * tests/fileio1.c: Removed strcat definition. Rely on string.h to
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10 provide it.
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11
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12 2002-05-28 Jonathan Larmour <jlarmour@redhat.com>
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13
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14 * include/limits.h (NAME_MAX): Increase default to 64.
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15 * cdl/fileio.cdl: Set CYGBLD_ISO_NAME_MAX_HEADER.
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17 2002-04-11 Nick Garnett <nickg@redhat.com>
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18
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19 * doc/fileio.sgml: Added a section on writing a new
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20 filesystem. This probably still needs more work, but it's better
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21 than nothing.
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22
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23 2002-04-05 Nick Garnett <nickg@redhat.com>
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24
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25 * src/devfs.cxx: Changed test for EAGAIN in dev_fo_read() and
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26 dev_fo_write() to negate value first.
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27
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28 2002-03-07 Nick Garnett <nickg@redhat.com>
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30 * doc/fileio.sgml: Added this file to contain documentation on
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31 this package.
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32
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33 2002-02-04 Gary Thomas <gthomas@redhat.com>
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34
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35 * tests/socket.c (main):
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36 * tests/select.c (main): sin_len field must be set.
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37
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38 2002-01-29 Jonathan Larmour <jlarmour@redhat.com>
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39
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40 * cdl/fileio.cdl: Actually, don't bother to build testfs.c at all.
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41
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42 2002-01-29 Jesper Skov <jskov@redhat.com>
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43
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44 * cdl/fileio.cdl: Added CYGPKG_FILEIO_BUILD_TESTS option and made
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45 building of testfs dependant on it.
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46
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47 2002-01-25 Jonathan Larmour <jlarmour@redhat.com>
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48
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49 * include/inode.h: New API defining a common generic inode type.
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50 * src/inocache.cxx: Implement the inode cache functions.
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51 * cdl/fileio.cdl: (Configurably) build it.
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52
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53 2002-01-23 David Woodhouse <dwmw2@redhat.com>
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54 2002-01-23 Jonathan Larmour <jlarmour@redhat.com>
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55
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56 * cdl/fileio.cdl: Remove select compilation and support to new
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57 CYGFUN_IO_FILEIO_SELECT option conditional on the kernel
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58 Ditto for DEVS and CYGPKG_IO_FILEIO_DEVFS_SUPPORT.
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59 Make CYGPKG_IO_FILEIO_SOCKET_SUPPORT also conditional on kernel.
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60 * src/fio.h: Define FILEIO_MUTEX_LOCK() and FILEIO_MUTEX_UNLOCK()
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61 so that code doesn't need to care whether the kernel is included or
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62 not.
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63 * src/fd.cxx: Conditionalize mutex usage throughout on CYGPKG_KERNEL,
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64 and FILEIO_MUTEX_LOCK()/UNLOCK().
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65 * src/file.cxx: Ditto.
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66 * src/misc.cxx: Ditto.
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67 (cyg_timestamp): Only use Cyg_Clock implementation if CYGPKG_KERNEL.
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68
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69 2002-01-23 Jonathan Larmour <jlarmour@redhat.com>
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70
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71 * src/misc.cxx: Initialize fileio_initializer at prio CYG_INIT_IO_FS
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72 so it happens after the devices it depends on.
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73 * src/file.cxx (getcwd_lock): Ditto.
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74 * src/select.cxx (select_mutex): ditto.
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75 (selwait): ditto.
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76 * src/fd.cxx (fdlock): ditto
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77 (file_lock): ditto.
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78 * src/dir.cxx (readdir): Use FILEIO_RETURN_VALUE on exit.
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79 (readdir_r): Ditto.
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80 * src/devfs.cxx (dev_stat): Don't use handle for st_dev - it will
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81 probably be truncated.
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82
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83 2002-01-04 Wade Jensen <Wade_Jensen@inter-tel.com>
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84 2002-01-04 Jonathan Larmour <jlarmour@redhat.com>
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85
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86 * src/socket.cxx (recvfrom): Set msg.msg_namelen correctly for
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87 NULL fromlen.
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88
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89 2001-12-28 Gary Thomas <gthomas@redhat.com>
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90
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91 * src/io.cxx (readwrite): Add missing check for return (errors).
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93 2001-11-29 Jonathan Larmour <jlarmour@redhat.com>
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94
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95 * src/file.cxx (chdir): Don't detach from current dir if unset.
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96
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97 2001-11-02 Felix Wong <felixwong@i-technologies.cc>
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98 2001-11-02 Jonathan Larmour <jlarmour@redhat.com>
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99
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100 * src/devfs.cxx (dev_fo_read): Support block devices.
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101 (dev_fo_write): Ditto.
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103 2001-10-09 Jonathan Larmour <jlarmour@redhat.com>
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104
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105 * src/fio.h: Make cancellation point dependand on
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106 CYGINT_ISO_PTHREAD_IMPL from <pkgconf/isoinfra.h> really.
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107 * tests/select.c: Ditto.
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108
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109 2001-10-09 Jesper Skov <jskov@redhat.com>
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110
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111 * tests/select.c: Do NA check for posix threads.
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112
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113 * src/fio.h: Make cancellation point dependant on
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114 CYGPKG_POSIX_PTHREAD as in the POSIX package.
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115
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116 2001-07-26 Jonathan Larmour <jlarmour@redhat.com>
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117
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118 * cdl/fileio.cdl: Implements select().
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119 * src/select.cxx: Include <sys/select.h> from isoinfra.
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120
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121 2001-07-19 Jonathan Larmour <jlarmour@redhat.com>
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122
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123 * src/devfs.cxx (dev_fo_read): Treat non-blocking reads returning
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124 EAGAIN correctly
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125 (dev_fo_write): Ditto for writes.
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126
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127 2001-06-14 Jonathan Larmour <jlarmour@redhat.com>
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128
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129 * src/fio.h (FILEIO_ENTRY): Don't use CYG_MACRO_START/END around
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130 tracing macros.
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131 Reported by Richard Panton.
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132
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133 2001-06-11 Jonathan Larmour <jlarmour@redhat.com>
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134
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135 * src/socket.cxx (cyg_sock_unlock): Fix cyg_file_lock->cyg_file_unlock
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136 thinko.
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137
156
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138 2001-03-15 Gary Thomas <gthomas@redhat.com>
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139
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140 * src/file.cxx (open): Check for required/valid open mode.
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141
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142 2001-03-14 Jonathan Larmour <jlarmour@redhat.com>
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143
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144 * src/misc.cxx (cyg_mtab_lookup): check valid mtab entry
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145 (umount): ditto.
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146
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147 2001-03-14 Martin van Veen <martin_van_veen@yahoo.com>
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148
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149 * src/misc.cxx (mount): Return error if mount fails.
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150
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151 2001-03-12 Gary Thomas <gthomas@redhat.com>
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152
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153 * src/misc.cxx (mount): Do implicit 'chdir()' in the
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154 absence of any statically mounted file systems.
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155 (cyg_fs_lock, cyg_fs_unlock): Add assertions.
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156
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157 * src/file.cxx (LOCK_FS):
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158 * src/dir.cxx (LOCK_FS): Add assertions on 'mte'.
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159
148
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160 2001-01-05 Nick Garnett <nickg@cygnus.co.uk>
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161
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162 * tests/socket.c (main):
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163 Added call to init_all_network_interfaces().
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164
145
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165 2000-12-15 Nick Garnett <nickg@cygnus.co.uk>
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166
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167 * src/misc.cxx: Fixed some bugs in initialization of timestamp
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168 function when Wallclock and POSIX packages are absent.
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169
134
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170 2000-11-01 Jonathan Larmour <jlarmour@redhat.com>
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171
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172 * src/io.cxx (readwrite): Ensure we call FILEIO_RETURN_VALUE() to
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173 get correct cleanup
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174 (fpathconf): Ditto
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175 (lseek): Ditto
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176
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177 * src/file.cxx (open): If applicable, refer to stdin, stdout and stderr
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178 here to ensure they are pulled in, in case selective linking would
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179 otherwise eliminate them. This is to ensure they get allocated to
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180 fd's 0, 1 and 2.
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181
130
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182 2000-10-13 Nick Garnett <nickg@cygnus.co.uk>
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183
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184 * src/io.cxx (readwrite): Merged both read() and write() functions
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185 into this single common routine.
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186
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187 * include/fileio.h: Introduced a common typedef for both read and
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188 write operations.
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189
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190 * doc/fileio.txt: Added some text about getcwd() and tidied up
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191 some other parts.
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192
128
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193 2000-10-05 Nick Garnett <nickg@cygnus.co.uk>
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194
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195 * src/file.cxx: Added support for getcwd(). There are three
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196 mechanisms provided here. The first is to use the FS_INFO_GETCWD
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197 key on the filesystem to use any support it has for this. If that
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198 fails it falls back on one of the two other mechanisms. If
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199 CYGPKG_IO_FILEIO_TRACK_CWD is set then the current directory is
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200 tracked textually in chdir() and the result of that is reported in
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201 getcwd(). Otherwise an attempt is made to traverse the directory
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202 tree to its root using ".." entries. This last option is
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203 complicated and expensive, so the other two mechanisms are to be
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204 preferred if possible.
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205
148
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206 * include/fileio.h: Added FS_INFO_GETCWD getinfo option and a
128
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207 matching struct cyg_getcwd_info. These are used to access getcwd()
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208 support in a filesystem.
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209
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210 * src/fio.h: Added initial support for POSIX API function entry
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211 and return.
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212
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213 * cdl/fileio.cdl: Added CYGPKG_IO_FILEIO_TRACK_CWD option to
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214 enable current directory tracking.
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215
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216 2000-09-28 Nick Garnett <nickg@cygnus.co.uk>
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217
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218 * src/select.cxx (cyg_selwakeup):
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219 Removed test for whether the waiting thread is actually waiting
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220 for this event. This lead to a race condition when the thread is
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221 still polling other objects but has already checked this
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222 event. Now all waiting selectors are woken up by each selectable
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223 event.
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224
126
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225 2000-09-18 Jonathan Larmour <jlarmour@redhat.com>
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226
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227 * src/select.cxx: Apply constructor prioritization to mutexes and
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228 condition variables
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229 * src/fd.cxx: Ditto
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230
124
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231 2000-09-11 Jonathan Larmour <jlarmour@redhat.com>
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232
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233 * tests/select.c: NA if no POSIX package
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234
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235 * cdl/fileio.cdl: Set CYGBLD_ISO_OPEN_MAX_HEADER to this package's
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236 limits.h
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237 * include/limits.h: New file to define OPEN_MAX (and other things in
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238 future)
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239
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240 2000-09-08 Nick Garnett <nickg@cygnus.co.uk>
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241
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242 * include/fileio.h:
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243 Removed spaces from arguments to CYG_HAL_TABLE_ENTRY().
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244
121
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245 2000-09-04 Jonathan Larmour <jlarmour@redhat.com>
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246
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247 * include/sockio.h (struct cyg_nstab_entry): Apply CYG_HAL_TABLE_TYPE
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248 * include/fileio.h (struct cyg_mtab_entry): Ditto
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249 (FSTAB_ENTRY): Ditto
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250
119
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251 2000-08-31 Nick Garnett <nickg@cygnus.co.uk>
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252
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253 * src/select.cxx (select): Added scheduler unlock in timeout
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254 return case.
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255
117
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256 2000-08-22 Jonathan Larmour <jlarmour@redhat.co.uk>
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257
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258 * doc/fileio.txt: Add Nick's text description of plug-in filesystems
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259 and sockets here for now.
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260
115
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261 2000-08-18 Nick Garnett <nickg@cygnus.co.uk>
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262
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263 * include/fileio.h: Added CYG_FAPPEND flag for preservation in
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264 file object flags.
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265 Added prototype for cyg_timestamp().
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266
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267 * src/misc.cxx: Fixed bug in cyg_mtab_lookup() when dealing with
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268 empty mount table entries.
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269 Added cyg_timestamp() to provide timestamp support to client
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270 filesystems.
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271
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272 2000-08-09 Jonathan Larmour <jlarmour@redhat.co.uk>
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273
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274 * src/misc.cxx: Don't define own strcmp() function (which had a bug
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275 anyway). Use string.h.
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276 * cdl/fileio.cdl: requires ISO C string functions
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277
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278 2000-08-01 Jonathan Larmour <jlarmour@redhat.co.uk>
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279
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280 * src/misc.cxx: Use correct initializer for mtab_extra
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281
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282 * src/fio.h (FILEIO_RETURN_VOID): Surround in CYG_MACRO_START to
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283 prevent problems when used with one-line if.
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284 (FILEIO_RETURN_VALUE): Likewise
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285
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286 * include/fileio.h: Make getinfo/setinfo take void *bufs, not char *
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287 for easier casting (and more correct)
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288
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289 * tests/testfs.c: Likewise
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290
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291 * src/devfs.cxx: Likewise.
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292 Also fix bug with Nick's change below that set non-blocking mode
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293 in all cases.
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294
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295 2000-07-31 Nick Garnett <nickg@cygnus.co.uk>
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296
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297 * src/devfs.cxx (dev_open): Added support for O_NONBLOCK.
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298
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299 2000-07-27 Nick Garnett <nickg@cygnus.co.uk>
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300
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301 * tests/select.c: Wrapped include of pkgconf/io_serial.h in
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302 #ifdef CYGPKG_IO_SERIAL.
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303
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304 2000-07-25 Jonathan Larmour <jlarmour@redhat.co.uk>
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305
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306 * tests/select.c (main): Wrap call to init_all_network_interfaces()
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307 in #ifdef TEST_NET
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308
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309 2000-07-25 Nick Garnett <nickg@cygnus.co.uk>
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310
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311 * tests/select.c (main): Added call to
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312 init_all_network_interfaces().
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313
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314 2000-07-21 Nick Garnett <nickg@cygnus.co.uk>
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315
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316 * include/fileio.h:
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317 * src/file.cxx:
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318 * src/devfs.cxx:
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319 * tests/testfs.c:
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320 Added support for link() API call. This was the only major file
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321 operation omitted.
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322
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323 2000-07-20 Nick Garnett <nickg@cygnus.co.uk>
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324
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325 * include/fileio.h: Added some modes for fsync().
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326
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327 * src/file.cxx: Added access() function.
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328
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329 * src/io.cxx: Added fdatasync() and isatty().
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330
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331 * src/devfs.cxx: Added fsync() support.
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332
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333 * tests/fileio1.c: Added calls to access() to check (non-)existence
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334 of files where appropriate.
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335
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336 2000-07-13 Nick Garnett <nickg@cygnus.co.uk>
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337
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338 * src/select.cxx (select): Fixed return value when timing out. Now
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339 returns zero and no error, it used to return -1 and ETIMEDOUT.
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340
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341 * src/io.cxx: Fixed fsync() to match standard.
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342
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343 * src/devfs.cxx:
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344 Added lseek() support - all devices are always at position
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345 zero. Added [f]stat() support - currently just fills in the stat
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346 buffer with some predefined values. When we have more
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347 sophisticated devices this may need to be improved.
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348
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349 * tests/testfs.c (testfs_open): Added support for O_TRUNC open
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350 flag.
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351
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352 * tests/stdio.c:
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353 * cdl/fileio.cdl:
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354 Added stdio.c to test C library IO integration. This does not test
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355 the C library functionality, just that it works with the fileio
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356 package in certain limited ways.
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357
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358 2000-06-30 Nick Garnett <nickg@cygnus.co.uk>
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359
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360 * src/misc.cxx: Fixed definition of mtab_extra[] so that it gets
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361 emitted correctly into the object file.
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362
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363 * tests/testfs.c:
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364 Added support for dynamic mount()/umount().
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365 Added testfs_dump() to report state of filesystem, and to do a
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366 little consistency checking.
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367
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368 * tests/fileio1.c: Extended testing to mount() and maximum file
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369 sizes.
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370
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371 2000-06-28 Nick Garnett <nickg@cygnus.co.uk>
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372
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373 * include/dirent.h: Added this file to contain directory support
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374 definitions.
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375
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376 * include/fileio.h:
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377 Introduced separate typedefs for all operation functions.
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378 Added CYG_FDIR to mark directory streams.
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379 Added some default operation functions.
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380
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381 * src/fio.h (FILEIO_RETURN_VOID): Added this macro.
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382
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383 * src/dir.cxx: Added this file to contain directory listing API
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384 functions.
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385
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386 * src/misc.cxx:
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387 Added default operation functions.
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388
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389 * src/file.cxx:
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390 Fixed mkdir() to have correct prototype.
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391 Moved opendir() to dir.cxx.
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392 Added support in chdir() for deregistering the current directory.
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393
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394 * cdl/fileio.cdl: Added dev.cxx to compile list. Added support for
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395 dirent.h implementation.
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396
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397 * tests/testfs.c: Lots of changes towards a more complete
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398 implementation.
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399
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400 * tests/select.c: Changed SHOW_RESULT() message a little. Fixed up
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401 some warnings when no testing is possible.
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402
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403 * tests/fileio1.c:
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404 Largely rewritten to do more complete testing.
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405
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406 2000-06-19 Nick Garnett <nickg@cygnus.co.uk>
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407
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408 * src/select.cxx: Added selwake_count variable to count select
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409 wakeups. This allows us to avoid sleeping when a selectee calls
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410 cyg_selwakeup() while we are still scanning the FD sets.
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411
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412 * include/fileio.h:
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413 * include/sockio.h:
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414 * src/misc.cxx:
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415 * src/socket.cxx:
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416 Converted tables to new mechanism.
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417
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418 * tests/select.c: Reduced buffer size to avoid buffer overflow in
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419 serial devices.
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420
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421 2000-06-15 Nick Garnett <nickg@cygnus.co.uk>
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422
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423 * include/fileio.h:
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424 Added typedef for cyg_selinfo.
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425 Added umount to fstab entry structure.
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426 Added mount() and unmount() prototypes.
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427 Added const in various places.
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428 Changed some types from CYG_ADDRWORD to their ISO standard
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429 equivalents.
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430 Added si_thread field to cyg_selinfo structure, added
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431 cyg_selinit() prototype.
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432
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433 * src/socket.cxx: Converted an errant LOCK_NS() into the
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434 UNLOCK_NS() it should be.
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435
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436 * src/select.cxx:
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437 Added cyg_selinit() which must be called by all selectees at
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438 initialization to prepare a cyg_selinfo structure for use.
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439 Modified cyg_selwakeup() to minimize the number for actual wakeup
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440 operations it actually performs.
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441
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442 * src/misc.cxx:
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443 Added mtab_extra[] to contain dynamic mount table entries,
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444 modified startup scan of mtab to cope with this.
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445 changed matchlen() to cope with "/" mountpoint, this function is
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446 rapidly ceasing to be the neat bit of code it started out as.
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447 Added implementations of mount() and umount().
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448
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449 * src/devfs.cxx: Added dev_umount, various minor tweaks.
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450
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451 * cdl/fileio.cdl: Added CYGNUM_FILEIO_MTAB_EXTRA to define how
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452 many extra mount table entries should exist for dynamic mounts.
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453 Added select.c to list of tests.
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454
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455 * tests/select.c: Added this file to test select() functionality
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456 on both sockets and (serial) devices.
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457
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458 * tests/socket.c: Tidied some compilation warnings.
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459
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460 * tests/testfs.c: Added umount stub function.
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461
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462 2000-06-12 Nick Garnett <nickg@cygnus.co.uk>
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463
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464 * include/sockio.h:
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465 * include/fileio.h:
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466 * src/fio.h:
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467 * tests/testfs.c:
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468 * src/socket.cxx:
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469 * src/misc.cxx:
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470 * src/file.cxx:
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471 * src/fd.cxx:
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472 * src/io.cxx:
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473 * src/devfs.cxx:
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474 Tidied up and sorted out locking protocols and synchronization
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475 mechanisms.
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476
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477 2000-06-09 Nick Garnett <nickg@cygnus.co.uk>
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478
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479 * src/select.cxx:
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480 * src/devfs.cxx:
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481 * include/fileio.h:
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482 * tests/testfs.c:
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483 Added select() support.
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484
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485 * src/socket.cxx: Fixed a resource management bug in accept().
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486
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487 * tests/socket.c: Extended to test that all API calls work, at
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488 least minimally, as they should. Still some calls to add here.
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489
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490 2000-06-07 Nick Garnett <nickg@cygnus.co.uk>
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491
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492 * tests/socket.c: Simple socket API test program. Needs much more
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493 work to give full coverage.
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494
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495 * src/socket.cxx: Filled in some implementations. Changed some
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496 type specifications.
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497
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498 * src/select.cxx: Added this file to contain select()
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499 implementation. At present it does nothing.
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500
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501 * include/sockio.h:
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502 Added definition of socklen_t for use when the NET package is
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503 absent - just so this file compiles.
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504 Added macro to generate an nstab entry.
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505 Changed prototypes of socket operation ffunctions to better match
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506 both API definition and BSD stack implementation.
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507
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508 * cdl/fileio.cdl: Added support for socket API. This is only
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509 active if the NET package is present.
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510 Added initial socket API test program.
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511
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512 2000-06-02 Nick Garnett <nickg@cygnus.co.uk>
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513
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514 * src/socket.cxx:
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515 Added this file to implement socket interface. This is still a
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516 rough draft that has not yet been tested.
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517
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518 * src/misc.cxx:
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519 * src/io.cxx:
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520 * src/fio.h: Various minor changes and bug fixes.
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521
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522 * src/file.cxx: Various bug fixes. Added pathconf().
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523
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524 * src/fd.cxx: Various changes and bug fixes, mostly in the
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525 handling of the locking mechanisms.
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526
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527 * src/devfs.cxx: Added this filesystem to interface to the device
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528 IO subsystem. Not yet tested.
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529
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530 * include/sockio.h: Various minor changes prompted by
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531 implementation.
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532
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533 * include/fileio.h:
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534 Added macros to instantiate filesystem and mount table entries.
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535 Added mode mask for setting up f_flags.
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536 Changed file object types, added device type.
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537
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538 * cdl/fileio.cdl:
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539 Added some extra files to compile. Some now go in libextras.
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540 Added table maxima for fstab, mtab and nstab.
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541 Added tests.
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542
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543 * tests/fileio1.c: Added this simple test for the fileio
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544 infrastructure.
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545
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546 * tests/testfs.c:
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547 Created this simple ROM filesystem to test out the fileio
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548 infrastructure. This is not really usable for anything other than
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549 this, and should not be used in "production" systems. Hence its
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550 presence in tests rather than src.
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551 At present this only has support for open(), close(), read(),
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552 write(), lseek() and unlink(). Other parts will be implemented as
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553 and when required.
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554
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555 2000-05-31 Nick Garnett <nickg@cygnus.co.uk>
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556
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557 * src/fio.h:
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558 * src/file.cxx:
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559 * src/io.cxx:
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560 * src/misc.cxx:
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561 Roughed out most of the file IO infrastructure. While this code
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562 compiles, none of it has actually been executed yet. A lot of this
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563 was cut-and-paste-and-edit, so some minor blemishes are to be
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564 expected.
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565
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566 * src/fd.cxx: Several modifications in response to implementing
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567 rest of infrastructure. Added dup() and dup2() API routines.
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568
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569 * include/fileio.h: Many changes and tidies prompted by
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570 infrastructure implementation.
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571
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572 * cdl/fileio.cdl: Added "implements" directives for isoinfra
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573 interfaces. Extended compile to new files.
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574
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575 2000-05-26 Nick Garnett <nickg@cygnus.co.uk>
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576
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577 * include/fileio.h:
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578 * include/sockio.h:
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579 * src/fd.cxx:
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580 * cdl/fileio.cdl:
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581 Created these files as a start at defining the file IO package.
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582 There is still a lot to do here, so expect radical changes to all
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583 of these files in the near future.