Mercurial > hg > nginx-quic
view src/os/unix/ngx_setaffinity.c @ 5650:363395795384
SPDY: moved a variable initialization near to its check.
This should prevent attempts of using pointer before it was checked, since
all modern compilers are able to spot access to uninitialized variable.
No functional changes.
author | Valentin Bartenev <vbart@nginx.com> |
---|---|
date | Wed, 09 Apr 2014 18:15:32 +0400 |
parents | f31162fefe01 |
children | 7296b38f6416 |
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/* * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> #if (NGX_HAVE_CPUSET_SETAFFINITY) #include <sys/cpuset.h> void ngx_setaffinity(uint64_t cpu_affinity, ngx_log_t *log) { cpuset_t mask; ngx_uint_t i; ngx_log_error(NGX_LOG_NOTICE, log, 0, "cpuset_setaffinity(0x%08Xl)", cpu_affinity); CPU_ZERO(&mask); i = 0; do { if (cpu_affinity & 1) { CPU_SET(i, &mask); } i++; cpu_affinity >>= 1; } while (cpu_affinity); if (cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(cpuset_t), &mask) == -1) { ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, "cpuset_setaffinity() failed"); } } #elif (NGX_HAVE_SCHED_SETAFFINITY) void ngx_setaffinity(uint64_t cpu_affinity, ngx_log_t *log) { cpu_set_t mask; ngx_uint_t i; ngx_log_error(NGX_LOG_NOTICE, log, 0, "sched_setaffinity(0x%08Xl)", cpu_affinity); CPU_ZERO(&mask); i = 0; do { if (cpu_affinity & 1) { CPU_SET(i, &mask); } i++; cpu_affinity >>= 1; } while (cpu_affinity); if (sched_setaffinity(0, sizeof(cpu_set_t), &mask) == -1) { ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, "sched_setaffinity() failed"); } } #endif