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comparison src/os/unix/ngx_freebsd_init.c @ 361:446782c909b3

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nginx-0.0.7-2004-06-20-23:54:15 import
author Igor Sysoev <igor@sysoev.ru>
date Sun, 20 Jun 2004 19:54:15 +0000
parents ee394e997c77
children 018569a8f09c
comparison
equal deleted inserted replaced
360:239e37d44a34 361:446782c909b3
119 119
120 120
121 #if (HAVE_SENDFILE) 121 #if (HAVE_SENDFILE)
122 122
123 /* 123 /*
124 * The determination of the sendfile() nbytes bug is complex enough. 124 * The determination of the sendfile() "nbytes bug" is complex enough.
125 * There are two sendfile() syscalls: a new #393 has no bug while 125 * There are two sendfile() syscalls: a new #393 has no bug while
126 * an old #336 has the bug in some versions and has not in others. 126 * an old #336 has the bug in some versions and has not in others.
127 * Besides libc_r wrapper also emulates the bug in some versions. 127 * Besides libc_r wrapper also emulates the bug in some versions.
128 * There's no way to say exactly if a given FreeBSD version has the bug. 128 * There's no way to say exactly if a given FreeBSD version has the bug.
129 * Here is the algorithm that works at least for RELEASEs 129 * We use the algorithm that is correct at least for RELEASEs
130 * and for syscalls only (not libc_r wrapper). 130 * and for syscalls only (not libc_r wrapper).
131 * 131 *
132 * We detect the new sendfile() version available at the compile time 132 * 4.6.1-RELEASE and below have the bug
133 * 4.6.2-RELEASE and above have the new syscall
134 *
135 * We detect the new sendfile() syscall available at the compile time
133 * to allow an old binary to run correctly on an updated FreeBSD system. 136 * to allow an old binary to run correctly on an updated FreeBSD system.
134 */ 137 */
135 138
136 #if (__FreeBSD__ == 4 && __FreeBSD_version >= 460102) \ 139 #if (__FreeBSD__ == 4 && __FreeBSD_version >= 460102) \
137 || __FreeBSD_version == 460002 || __FreeBSD_version >= 500039 140 || __FreeBSD_version == 460002 || __FreeBSD_version >= 500039
140 143
141 ngx_freebsd_sendfile_nbytes_bug = 0; 144 ngx_freebsd_sendfile_nbytes_bug = 0;
142 145
143 #else 146 #else
144 147
145 /* an old syscall that can have the bug */ 148 /* an old syscall that may have the bug */
146 149
147 ngx_freebsd_sendfile_nbytes_bug = 1; 150 ngx_freebsd_sendfile_nbytes_bug = 1;
148 151
149 #endif 152 #endif
150 153