commit e2e588175eac4ebe8fb47c0540954d0f78525cce Author: Nick Mathewson <nickm@torproject.org> Date: Wed Apr 30 12:48:46 2014 -0400 New testing-only tor_sleep_msec function In the unit tests I want to loop with a delay, but I want less than a 1 second delay. This, sadly, requires compatibility code. --- configure.ac | 2 ++ src/common/compat.c | 26 ++++++++++++++++++++++++++ src/common/compat.h | 4 ++++ 3 files changed, 32 insertions(+) diff --git a/configure.ac b/configure.ac index c0c8187..c662a9f 100644 --- a/configure.ac +++ b/configure.ac @@ -355,6 +355,7 @@ AC_CHECK_FUNCS( sysconf \ sysctl \ uname \ + usleep \ vasprintf \ _vscprintf ) @@ -885,6 +886,7 @@ AC_CHECK_HEADERS( sys/param.h \ sys/prctl.h \ sys/resource.h \ + sys/select.h \ sys/socket.h \ sys/sysctl.h \ sys/syslimits.h \ diff --git a/src/common/compat.c b/src/common/compat.c index 1ba264a..1c460b6 100644 --- a/src/common/compat.c +++ b/src/common/compat.c @@ -114,6 +114,12 @@ /* Only use the linux prctl; the IRIX prctl is totally different */ #include <sys/prctl.h> #endif +#ifdef TOR_UNIT_TESTS +#if !defined(HAVE_USLEEP) && defined(HAVE_SYS_SELECT_H) +/* as fallback implementation for tor_sleep_msec */ +#include <sys/select.h> +#endif +#endif #include "torlog.h" #include "util.h" @@ -3450,3 +3456,23 @@ get_total_system_memory(size_t *mem_out) return -1; } +#ifdef TOR_UNIT_TESTS +/** Delay for <b>msec</b> milliseconds. Only used in tests. */ +void +tor_sleep_msec(int msec) +{ +#ifdef _WIN32 + Sleep(msec); +#elif defined(HAVE_USLEEP) + sleep(msec / 1000); + /* Some usleep()s hate sleeping more than 1 sec */ + usleep((msec % 1000) * 1000); +#elif defined(HAVE_SYS_SELECT_H) + struct timeval tv = { msec / 1000, (msec % 1000) * 1000}; + select(0, NULL, NULL, NULL, &tv); +#else + sleep(CEIL_DIV(msec, 1000)); +#endif +} +#endif + diff --git a/src/common/compat.h b/src/common/compat.h index 314b1aa..d723448 100644 --- a/src/common/compat.h +++ b/src/common/compat.h @@ -744,6 +744,10 @@ char *format_win32_error(DWORD err); #endif +#ifdef TOR_UNIT_TESTS +void tor_sleep_msec(int msec); +#endif + #ifdef COMPAT_PRIVATE #if !defined(HAVE_SOCKETPAIR) || defined(_WIN32) || defined(TOR_UNIT_TESTS) #define NEED_ERSATZ_SOCKETPAIR