Mercurial > hg > nginx-vendor-0-7
view src/core/ngx_palloc.c @ 58:b55cbf18157e NGINX_0_1_29
nginx 0.1.29
*) Feature: the ngx_http_ssi_module supports "include virtual" command.
*) Feature: the ngx_http_ssi_module supports the condition command like
'if expr="$NAME"' and "else" and "endif" commands. Only one nested
level is supported.
*) Feature: the ngx_http_ssi_module supports the DATE_LOCAL and
DATE_GMT variables and "config timefmt" command.
*) Feature: the "ssi_ignore_recycled_buffers" directive.
*) Bugfix: the "echo" command did not show the default value for the
empty QUERY_STRING variable.
*) Change: the ngx_http_proxy_module was rewritten.
*) Feature: the "proxy_redirect", "proxy_pass_request_headers",
"proxy_pass_request_body", and "proxy_method" directives.
*) Feature: the "proxy_set_header" directive. The "proxy_x_var" was
canceled and must be replaced with the proxy_set_header directive.
*) Change: the "proxy_preserve_host" is canceled and must be replaced
with the "proxy_set_header Host $host" and the "proxy_redirect off"
directives, the "proxy_set_header Host $host:$proxy_port" directive
and the appropriate proxy_redirect directives.
*) Change: the "proxy_set_x_real_ip" is canceled and must be replaced
with the "proxy_set_header X-Real-IP $remote_addr" directive.
*) Change: the "proxy_add_x_forwarded_for" is canceled and must be
replaced with
the "proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for"
directive.
*) Change: the "proxy_set_x_url" is canceled and must be replaced with
the "proxy_set_header X-URL http://$host:$server_port$request_uri"
directive.
*) Feature: the "fastcgi_param" directive.
*) Change: the "fastcgi_root", "fastcgi_set_var" and "fastcgi_params"
directive are canceled and must be replaced with the fastcgi_param
directives.
*) Feature: the "index" directive can use the variables.
*) Feature: the "index" directive can be used at http and server levels.
*) Change: the last index only in the "index" directive can be absolute.
*) Feature: the "rewrite" directive can use the variables.
*) Feature: the "internal" directive.
*) Feature: the CONTENT_LENGTH, CONTENT_TYPE, REMOTE_PORT, SERVER_ADDR,
SERVER_PORT, SERVER_PROTOCOL, DOCUMENT_ROOT, SERVER_NAME,
REQUEST_METHOD, REQUEST_URI, and REMOTE_USER variables.
*) Change: nginx now passes the invalid lines in a client request
headers or a backend response header.
*) Bugfix: if the backend did not transfer response for a long time and
the "send_timeout" was less than "proxy_read_timeout", then nginx
returned the 408 response.
*) Bugfix: the segmentation fault was occurred if the backend sent an
invalid line in response header; bug appeared in 0.1.26.
*) Bugfix: the segmentation fault may occurred in FastCGI fault
tolerance configuration.
*) Bugfix: the "expires" directive did not remove the previous
"Expires" and "Cache-Control" headers.
*) Bugfix: nginx did not take into account trailing dot in "Host"
header line.
*) Bugfix: the ngx_http_auth_module did not work under Linux.
*) Bugfix: the rewrite directive worked incorrectly, if the arguments
were in a request.
*) Bugfix: nginx could not be built on MacOS X.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Thu, 12 May 2005 00:00:00 +0400 |
parents | 3050baa54a26 |
children | da9a3b14312d |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> ngx_pool_t * ngx_create_pool(size_t size, ngx_log_t *log) { ngx_pool_t *p; p = ngx_alloc(size, log); if (p == NULL) { return NULL; } p->last = (u_char *) p + sizeof(ngx_pool_t); p->end = (u_char *) p + size; p->next = NULL; p->large = NULL; p->chain = NULL; p->cleanup = NULL; p->log = log; return p; } void ngx_destroy_pool(ngx_pool_t *pool) { ngx_pool_t *p, *n; ngx_pool_large_t *l; ngx_pool_cleanup_t *c; for (c = pool->cleanup; c; c = c->next) { if (c->handler) { c->handler(c->data); } } for (l = pool->large; l; l = l->next) { ngx_log_debug1(NGX_LOG_DEBUG_ALLOC, pool->log, 0, "free: %p", l->alloc); if (l->alloc) { ngx_free(l->alloc); } } #if (NGX_DEBUG) /* * we could allocate the pool->log from this pool * so we can not use this log while the free()ing the pool */ for (p = pool, n = pool->next; /* void */; p = n, n = n->next) { ngx_log_debug2(NGX_LOG_DEBUG_ALLOC, pool->log, 0, "free: %p, unused: %uz", p, p->end - p->last); if (n == NULL) { break; } } #endif for (p = pool, n = pool->next; /* void */; p = n, n = n->next) { ngx_free(p); if (n == NULL) { break; } } } void * ngx_palloc(ngx_pool_t *pool, size_t size) { u_char *m; ngx_pool_t *p, *n; ngx_pool_large_t *large, *last; if (size <= (size_t) NGX_MAX_ALLOC_FROM_POOL && size <= (size_t) (pool->end - (u_char *) pool) - (size_t) ngx_align(sizeof(ngx_pool_t))) { for (p = pool, n = pool->next; /* void */; p = n, n = n->next) { m = ngx_align(p->last); if ((size_t) (p->end - m) >= size) { p->last = m + size; return m; } if (n == NULL) { break; } } /* allocate a new pool block */ n = ngx_create_pool((size_t) (p->end - (u_char *) p), p->log); if (n == NULL) { return NULL; } p->next = n; m = ngx_align(n->last); n->last = m + size; return m; } /* allocate a large block */ large = NULL; last = NULL; if (pool->large) { for (last = pool->large; /* void */ ; last = last->next) { if (last->alloc == NULL) { large = last; last = NULL; break; } if (last->next == NULL) { break; } } } if (large == NULL) { large = ngx_palloc(pool, sizeof(ngx_pool_large_t)); if (large == NULL) { return NULL; } large->next = NULL; } #if 0 p = ngx_memalign(ngx_pagesize, size, pool->log); if (p == NULL) { return NULL; } #else p = ngx_alloc(size, pool->log); if (p == NULL) { return NULL; } #endif if (pool->large == NULL) { pool->large = large; } else if (last) { last->next = large; } large->alloc = p; return p; } ngx_int_t ngx_pfree(ngx_pool_t *pool, void *p) { ngx_pool_large_t *l; for (l = pool->large; l; l = l->next) { if (p == l->alloc) { ngx_log_debug1(NGX_LOG_DEBUG_ALLOC, pool->log, 0, "free: %p", l->alloc); ngx_free(l->alloc); l->alloc = NULL; return NGX_OK; } } return NGX_DECLINED; } void * ngx_pcalloc(ngx_pool_t *pool, size_t size) { void *p; p = ngx_palloc(pool, size); if (p) { ngx_memzero(p, size); } return p; } ngx_pool_cleanup_t * ngx_pool_cleanup_add(ngx_pool_t *p, ngx_pool_cleanup_pt handler, void *data) { ngx_pool_cleanup_t *c; c = ngx_palloc(p, sizeof(ngx_pool_cleanup_t)); if (c == NULL) { return NULL; } c->handler = handler; c->data = data; c->next = p->cleanup; p->cleanup = c; return c; } void ngx_pool_cleanup_file(void *data) { ngx_pool_cleanup_file_t *c = data; if (ngx_close_file(c->fd) == NGX_FILE_ERROR) { ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, ngx_close_file_n " \"%s\" failed", c->name); } } #if 0 static void * ngx_get_cached_block(size_t size) { void *p; ngx_cached_block_slot_t *slot; if (ngx_cycle->cache == NULL) { return NULL; } slot = &ngx_cycle->cache[(size + ngx_pagesize - 1) / ngx_pagesize]; slot->tries++; if (slot->number) { p = slot->block; slot->block = slot->block->next; slot->number--; return p; } return NULL; } #endif