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r18927@catbus: nickm | 2008-03-18 11:11:49 -0400

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Combine common code in set_max_file_descriptors(): all that varies from platform to platform in the no-getrlimit() case is the connection limit and the platform name.


svn:r14101
This commit is contained in:
Nick Mathewson 2008-03-18 15:11:52 +00:00
parent fba2599680
commit 199d65d059
1 changed files with 20 additions and 31 deletions
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51
src/common/compat.c
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@ -765,47 +765,36 @@ tor_socketpair(int family, int type, int protocol, int fd[2])
int
set_max_file_descriptors(rlim_t limit, int *max_out)
{
#define DEFAULT_MAX_CONNECTIONS 15000
#define CYGWIN_MAX_CONNECTIONS 3200
#define IPHONE_MAX_CONNECTIONS 9999
/* Define some maximum connections values for systems where we cannot
* automatically determine a limit. Re Cygwin, see
* http://archives.seul.org/or/talk/Aug-2006/msg00210.html
* For an iPhone, 9999 should work. For Windows and all other unknown
* systems we use 15000 as the default. */
#ifndef HAVE_GETRLIMIT
#if defined(CYGWIN) || defined(__CYGWIN__)
const char *platform = "Cygwin";
const unsigned long MAX_CONNECTIONS = 3200;
#elif defined(IPHONE)
const char *platform = "iPhone";
const unsigned long MAX_CONNECTIONS = 9999;
#elif defined(MS_WINDOWS)
const char *platform = "Windows";
const unsigned long MAX_CONNECTIONS = 15000;
#else
const char *platform = "unknown platforms with no getrlimit()";
const unsigned long MAX_CONNECTIONS = 15000;
#endif
log_fn(LOG_INFO, LD_NET,
"This platform is missing getrlimit(). Proceeding.");
#ifdef MS_WINDOWS
if (limit > DEFAULT_MAX_CONNECTIONS) {
if (limit > MAX_CONNECTIONS) {
log_warn(LD_CONFIG,
"We do not support more than %lu file descriptors "
"on Windows. Tried to raise to %lu.",
(unsigned long)DEFAULT_MAX_CONNECTIONS, (unsigned long)limit);
"on %s. Tried to raise to %lu.",
(unsigned long)MAX_CONNECTIONS, platform, (unsigned long)limit);
return -1;
}
limit = DEFAULT_MAX_CONNECTIONS;
#elif defined(CYGWIN) || defined(__CYGWIN__)
if (limit > CYGWIN_MAX_CONNECTIONS) {
log_warn(LD_CONFIG, "We do not support more than %lu file descriptors "
"when using Cygwin. Tried to raise to %lu.",
(unsigned long)CYGWIN_MAX_CONNECTIONS, (unsigned long)limit);
return -1;
}
limit = CYGWIN_MAX_CONNECTIONS;
#elif defined(IPHONE)
if (limit > IPHONE_MAX_CONNECTIONS) {
log_warn(LD_CONFIG, "We do not support more than %lu file descriptors "
"on iPhone. Tried to raise to %lu.",
(unsigned long)IPHONE_MAX_CONNECTIONS, (unsigned long)limit);
return -1;
}
limit = IPHONE_MAX_CONNECTIONS;
#else
/* Unknown system without getrlimit support. Use the default value.*/
limit = DEFAULT_MAX_CONNECTIONS;
#endif
#else
limit = MAX_CONNECTIONS;
#else /* HAVE_GETRLIMIT */
struct rlimit rlim;
tor_assert(limit > 0);
@ -848,7 +837,7 @@ set_max_file_descriptors(rlim_t limit, int *max_out)
bad = 0;
}
}
#endif
#endif /* OPEN_MAX */
if (bad) {
log_warn(LD_CONFIG,"Couldn't set maximum number of file descriptors: %s",
strerror(errno));
@ -857,7 +846,7 @@ set_max_file_descriptors(rlim_t limit, int *max_out)
}
/* leave some overhead for logs, etc, */
limit = rlim.rlim_cur;
#endif
#endif /* HAVE_GETRLIMIT */
if (limit < ULIMIT_BUFFER) {
log_warn(LD_CONFIG,