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48 lines
1.5 KiB
48 lines
1.5 KiB
/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */ |
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#ifndef _IOB_H |
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#define _IOB_H |
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/* These functions can be used to create a queue of small (or large) |
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* buffers and parts of files to be sent out over a socket. It is meant |
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* for writing HTTP servers or the like. */ |
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/* This API works with non-blocking I/O. Simply call iob_send until it |
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* returns 0 (or -1). The implementation uses sendfile for zero-copy |
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* TCP and it will employ writev (or the built-in sendfile writev on |
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* BSD) to make sure the output fragments are coalesced into as few TCP |
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* frames as possible. On Linux it will also use the TCP_CORK socket |
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* option. */ |
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#include "io.h" |
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#include "array.h" |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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typedef struct io_batch { |
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array b; |
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uint64 bytesleft; |
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long next,bufs,files; |
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} io_batch; |
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io_batch* iob_new(int hint_entries); |
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int iob_addbuf(io_batch* b,const void* buf,uint64 n); |
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int iob_addbuf_free(io_batch* b,const void* buf,uint64 n); |
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int iob_addbuf_munmap(io_batch* b,const void* buf,uint64 n); |
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int iob_adds(io_batch* b,const char* s); |
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int iob_adds_free(io_batch* b,const char* s); |
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int iob_addfile(io_batch* b,int64 fd,uint64 off,uint64 n); |
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int iob_addfile_close(io_batch* b,int64 fd,uint64 off,uint64 n); |
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int64 iob_send(int64 s,io_batch* b); |
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int64 iob_write(int64 s,io_batch* b,io_write_callback cb); |
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void iob_reset(io_batch* b); |
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void iob_free(io_batch* b); |
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void iob_prefetch(io_batch* b,uint64 bytes); |
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uint64 iob_bytesleft(const io_batch* b); |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif
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