Mercurial > hg > nginx-quic
view src/os/win32/ngx_shmem.c @ 2812:dcb1b4d6ff54
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author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 06 May 2009 14:11:03 +0000 |
parents | d52cf82d0d77 |
children | beb0707ed8ab 87da6664fb49 |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> ngx_int_t ngx_shm_alloc(ngx_shm_t *shm) { u_char *name; name = ngx_alloc(shm->name.len + 2 + sizeof(NGX_INT32_LEN), shm->log); if (name == NULL) { return NGX_ERROR; } ngx_sprintf(name, "%V_%s%Z", &shm->name, ngx_unique); ngx_set_errno(0); shm->handle = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, 0, shm->size, (char *) name); if (shm->handle == NULL) { ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "CreateFileMapping(%uz, %s) failed", shm->size, shm->name.data); goto failed; } if (ngx_errno == ERROR_ALREADY_EXISTS) { shm->exists = 1; } shm->addr = MapViewOfFile(shm->handle, FILE_MAP_WRITE, 0, 0, 0); if (shm->addr != NULL) { return NGX_OK; } ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "MapViewOfFile(%uz) failed", shm->size); if (CloseHandle(shm->handle) == 0) { ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "CloseHandle() failed"); } failed: ngx_free(name); return NGX_ERROR; } void ngx_shm_free(ngx_shm_t *shm) { if (UnmapViewOfFile(shm->addr) == 0) { ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "UnmapViewOfFile(%p) failed", shm->addr); } if (CloseHandle(shm->handle) == 0) { ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "CloseHandle() failed"); } }