Mercurial > hg > nginx
diff src/http/ngx_http_copy_filter.c @ 334:af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Wed, 12 May 2004 05:37:55 +0000 |
parents | src/http/ngx_http_output_filter.c@e0f3f238db09 |
children | 6bdf858bff8c |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/http/ngx_http_copy_filter.c Wed May 12 05:37:55 2004 +0000 @@ -0,0 +1,127 @@ + +#include <ngx_config.h> +#include <ngx_core.h> +#include <ngx_http.h> + + +typedef struct { + ngx_bufs_t bufs; +} ngx_http_copy_filter_conf_t; + + +static void *ngx_http_copy_filter_create_conf(ngx_conf_t *cf); +static char *ngx_http_copy_filter_merge_conf(ngx_conf_t *cf, + void *parent, void *child); +static ngx_int_t ngx_http_copy_filter_init(ngx_cycle_t *cycle); + + +static ngx_command_t ngx_http_copy_filter_commands[] = { + + {ngx_string("output_buffers"), + NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, + ngx_conf_set_bufs_slot, + NGX_HTTP_LOC_CONF_OFFSET, + offsetof(ngx_http_copy_filter_conf_t, bufs), + NULL}, + + ngx_null_command +}; + + +static ngx_http_module_t ngx_http_copy_filter_module_ctx = { + NULL, /* pre conf */ + + NULL, /* create main configuration */ + NULL, /* init main configuration */ + + NULL, /* create server configuration */ + NULL, /* merge server configuration */ + + ngx_http_copy_filter_create_conf, /* create location configuration */ + ngx_http_copy_filter_merge_conf /* merge location configuration */ +}; + + +ngx_module_t ngx_http_copy_filter_module = { + NGX_MODULE, + &ngx_http_copy_filter_module_ctx, /* module context */ + ngx_http_copy_filter_commands, /* module directives */ + NGX_HTTP_MODULE, /* module type */ + ngx_http_copy_filter_init, /* init module */ + NULL /* init process */ +}; + + +static ngx_http_output_body_filter_pt ngx_http_next_filter; + + +ngx_int_t ngx_http_copy_filter(ngx_http_request_t *r, ngx_chain_t *in) +{ + ngx_output_chain_ctx_t *ctx; + ngx_http_copy_filter_conf_t *conf; + + if (r->connection->write->error) { + return NGX_ERROR; + } + + ctx = ngx_http_get_module_ctx(r->main ? r->main : r, + ngx_http_copy_filter_module); + + if (ctx == NULL) { + conf = ngx_http_get_module_loc_conf(r->main ? r->main : r, + ngx_http_copy_filter_module); + + ngx_http_create_ctx(r, ctx, ngx_http_copy_filter_module, + sizeof(ngx_output_chain_ctx_t), NGX_ERROR); + + ctx->sendfile = r->sendfile; + ctx->need_in_memory = r->filter & NGX_HTTP_FILTER_NEED_IN_MEMORY; + ctx->need_in_temp = r->filter & NGX_HTTP_FILTER_NEED_TEMP; + + ctx->pool = r->pool; + ctx->bufs = conf->bufs; + ctx->tag = (ngx_hunk_tag_t) &ngx_http_copy_filter_module; + + ctx->output_filter = (ngx_output_chain_filter_pt) ngx_http_next_filter; + ctx->filter_ctx = r; + + } + + return ngx_output_chain(ctx, in); +} + + +static void *ngx_http_copy_filter_create_conf(ngx_conf_t *cf) +{ + ngx_http_copy_filter_conf_t *conf; + + ngx_test_null(conf, + ngx_palloc(cf->pool, sizeof(ngx_http_copy_filter_conf_t)), + NULL); + + conf->bufs.num = 0; + + return conf; +} + + +static char *ngx_http_copy_filter_merge_conf(ngx_conf_t *cf, + void *parent, void *child) +{ + ngx_http_copy_filter_conf_t *prev = parent; + ngx_http_copy_filter_conf_t *conf = child; + + ngx_conf_merge_bufs_value(conf->bufs, prev->bufs, 1, 32768); + + return NULL; +} + + +static ngx_int_t ngx_http_copy_filter_init(ngx_cycle_t *cycle) +{ + ngx_http_next_filter = ngx_http_top_body_filter; + ngx_http_top_body_filter = ngx_http_copy_filter; + + return NGX_OK; +} +