lighttpd 1.4.x
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71 lines
1.6 KiB
71 lines
1.6 KiB
#include "network_backends.h" |
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#if defined(USE_SOLARIS_SENDFILEV) |
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#include "network.h" |
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#include "log.h" |
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#include <sys/sendfile.h> |
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#include <errno.h> |
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#include <string.h> |
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/** |
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* a very simple sendfilev() interface for solaris which can be optimised a lot more |
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* as solaris sendfilev() supports 'sending everythin in one syscall()' |
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*/ |
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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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chunk* const c = cq->first; |
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off_t offset; |
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off_t toSend; |
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size_t written = 0; |
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int r; |
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sendfilevec_t fvec; |
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force_assert(NULL != c); |
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force_assert(FILE_CHUNK == c->type); |
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force_assert(c->offset >= 0 && c->offset <= c->file.length); |
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offset = c->file.start + c->offset; |
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toSend = c->file.length - c->offset; |
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if (toSend > *p_max_bytes) toSend = *p_max_bytes; |
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if (0 == toSend) { |
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chunkqueue_remove_finished_chunks(cq); |
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return 0; |
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} |
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if (0 != network_open_file_chunk(srv, con, cq)) return -1; |
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fvec.sfv_fd = c->file.fd; |
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fvec.sfv_flag = 0; |
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fvec.sfv_off = offset; |
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fvec.sfv_len = toSend; |
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/* Solaris sendfilev() */ |
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if (-1 == (r = sendfilev(fd, &fvec, 1, &written))) { |
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switch(errno) { |
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case EAGAIN: |
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case EINTR: |
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/* for EAGAIN/EINTR written still contains the sent bytes */ |
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break; /* try again later */ |
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case EPIPE: |
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case ENOTCONN: |
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return -2; |
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default: |
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log_error_write(srv, __FILE__, __LINE__, "ssd", "sendfile: ", strerror(errno), errno); |
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return -1; |
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} |
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} |
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if (written >= 0) { |
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chunkqueue_mark_written(cq, written); |
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*p_max_bytes -= written; |
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} |
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return (r >= 0 && (off_t) written == toSend) ? 0 : -3; |
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} |
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#endif /* USE_SOLARIS_SENDFILEV */
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