lighttpd 1.4.x
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125 lines
4.3 KiB
125 lines
4.3 KiB
#ifndef _NETWORK_BACKENDS_H_ |
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#define _NETWORK_BACKENDS_H_ |
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#ifdef HAVE_CONFIG_H |
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# include "config.h" |
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#endif |
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#include "settings.h" |
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#include <sys/types.h> |
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/* on linux 2.4.x you get either sendfile or LFS */ |
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#if defined HAVE_SYS_SENDFILE_H && defined HAVE_SENDFILE && (!defined _LARGEFILE_SOURCE || defined HAVE_SENDFILE64) && defined(__linux__) && !defined HAVE_SENDFILE_BROKEN |
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# ifdef USE_SENDFILE |
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# error "can't have more than one sendfile implementation" |
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# endif |
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# define USE_SENDFILE "linux-sendfile" |
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# define USE_LINUX_SENDFILE |
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#endif |
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#if defined HAVE_SENDFILE && (defined(__FreeBSD__) || defined(__DragonFly__)) |
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# ifdef USE_SENDFILE |
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# error "can't have more than one sendfile implementation" |
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# endif |
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# define USE_SENDFILE "freebsd-sendfile" |
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# define USE_FREEBSD_SENDFILE |
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#endif |
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#if defined HAVE_SENDFILE && defined(__APPLE__) |
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# ifdef USE_SENDFILE |
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# error "can't have more than one sendfile implementation" |
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# endif |
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# define USE_SENDFILE "darwin-sendfile" |
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# define USE_DARWIN_SENDFILE |
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#endif |
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#if defined HAVE_SYS_SENDFILE_H && defined HAVE_SENDFILEV && defined(__sun) |
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# ifdef USE_SENDFILE |
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# error "can't have more than one sendfile implementation" |
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# endif |
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# define USE_SENDFILE "solaris-sendfilev" |
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# define USE_SOLARIS_SENDFILEV |
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#endif |
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/* not supported so far |
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#if defined HAVE_SEND_FILE && defined(__aix) |
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# ifdef USE_SENDFILE |
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# error "can't have more than one sendfile implementation" |
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# endif |
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# define USE_SENDFILE "aix-sendfile" |
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# define USE_AIX_SENDFILE |
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#endif |
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*/ |
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#if defined HAVE_SYS_UIO_H && defined HAVE_WRITEV |
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# define USE_WRITEV |
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#endif |
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#if defined HAVE_SYS_MMAN_H && defined HAVE_MMAP && defined ENABLE_MMAP |
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# define USE_MMAP |
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#endif |
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#include "base.h" |
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/* return values: |
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* >= 0 : no error |
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* -1 : error (on our side) |
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* -2 : remote close |
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*/ |
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int network_write_chunkqueue_write(server *srv, connection *con, int fd, chunkqueue *cq, off_t max_bytes); |
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#if defined(USE_WRITEV) |
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int network_write_chunkqueue_writev(server *srv, connection *con, int fd, chunkqueue *cq, off_t max_bytes); /* fallback to write */ |
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#endif |
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#if defined(USE_SENDFILE) |
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int network_write_chunkqueue_sendfile(server *srv, connection *con, int fd, chunkqueue *cq, off_t max_bytes); /* fallback to write */ |
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#endif |
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#if defined(USE_OPENSSL) |
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int network_write_chunkqueue_openssl(server *srv, connection *con, SSL *ssl, chunkqueue *cq, off_t max_bytes); |
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#endif |
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/* write next chunk(s); finished chunks are removed afterwards after successful writes. |
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* return values: similar as backends (0 succes, -1 error, -2 remote close, -3 try again later (EINTR/EAGAIN)) */ |
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/* next chunk must be MEM_CHUNK. use write()/send() */ |
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int network_write_mem_chunk(server *srv, connection *con, int fd, chunkqueue *cq, off_t *p_max_bytes); |
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#if defined(USE_WRITEV) |
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/* next chunk must be MEM_CHUNK. send multiple mem chunks using writev() */ |
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int network_writev_mem_chunks(server *srv, connection *con, int fd, chunkqueue *cq, off_t *p_max_bytes); |
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#else |
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/* fallback to write()/send() */ |
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static inline int network_writev_mem_chunks(server *srv, connection *con, int fd, chunkqueue *cq, off_t *p_max_bytes) { |
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return network_write_mem_chunk(srv, con, fd, cq, p_max_bytes); |
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} |
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#endif |
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/* next chunk must be FILE_CHUNK. use temporary buffer (srv->tmp_buf) to read into, then write()/send() it */ |
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int network_write_file_chunk_no_mmap(server *srv, connection *con, int fd, chunkqueue *cq, off_t *p_max_bytes); |
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off_t mmap_align_offset(off_t start); |
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#if defined(USE_MMAP) |
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/* next chunk must be FILE_CHUNK. send mmap()ed file with write() */ |
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int network_write_file_chunk_mmap(server *srv, connection *con, int fd, chunkqueue *cq, off_t *p_max_bytes); |
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#else |
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/* fallback to no_mmap */ |
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static inline int network_write_file_chunk_mmap(server *srv, connection *con, int fd, chunkqueue *cq, off_t *p_max_bytes) { |
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return network_write_file_chunk_no_mmap(srv, con, fd, cq, p_max_bytes); |
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} |
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#endif |
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#if defined(USE_SENDFILE) |
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int network_write_file_chunk_sendfile(server *srv, connection *con, int fd, chunkqueue *cq, off_t *p_max_bytes); |
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#else |
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/* fallback to mmap */ |
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static inline int network_write_file_chunk_sendfile(server *srv, connection *con, int fd, chunkqueue *cq, off_t *p_max_bytes) { |
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return network_write_file_chunk_mmap(srv, con, fd, cq, p_max_bytes); |
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} |
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#endif |
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/* next chunk must be FILE_CHUNK. return values: 0 success (=> -1 != cq->first->file.fd), -1 error */ |
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int network_open_file_chunk(server *srv, connection *con, chunkqueue *cq); |
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#endif
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