Mercurial > hg > nginx
diff src/core/ngx_file.c @ 6442:6e10518f95d8
Threads: offloading of temp files writing to thread pools.
The ngx_thread_write_chain_to_file() function introduced, which
uses ngx_file_t thread_handler, thread_ctx and thread_task fields.
The task context structure (ngx_thread_file_ctx_t) is the same for
both reading and writing, and can be safely shared as long as
operations are serialized.
The task->handler field is now always set (and not only when task is
allocated), as the same task can be used with different handlers.
The thread_write flag is introduced in the ngx_temp_file_t structure
to explicitly enable use of ngx_thread_write_chain_to_file() in
ngx_write_chain_to_temp_file() when supported by caller.
In collaboration with Valentin Bartenev.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Fri, 18 Mar 2016 06:44:03 +0300 |
parents | 7bdd34cd2711 |
children | a5897d360977 |
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--- a/src/core/ngx_file.c Fri Mar 18 06:43:52 2016 +0300 +++ b/src/core/ngx_file.c Fri Mar 18 06:44:03 2016 +0300 @@ -124,6 +124,15 @@ } } +#if (NGX_THREADS && NGX_HAVE_PWRITEV) + + if (tf->thread_write) { + return ngx_thread_write_chain_to_file(&tf->file, chain, tf->offset, + tf->pool); + } + +#endif + return ngx_write_chain_to_file(&tf->file, chain, tf->offset, tf->pool); }