comparison: src/server/util/io.h
src/server/util/io.h
- changeset 14
- b8bf95b39952
- parent 9
- 30e51941a673
- child 32
- ebba53de8b18
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| 13:1fdbf4170ef4 | 14:b8bf95b39952 |
|---|---|
| 1 /* | |
| 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
| 3 * | |
| 4 * Copyright 2011 Olaf Wintermann. All rights reserved. | |
| 5 * | |
| 6 * Redistribution and use in source and binary forms, with or without | |
| 7 * modification, are permitted provided that the following conditions are met: | |
| 8 * | |
| 9 * 1. Redistributions of source code must retain the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer. | |
| 11 * | |
| 12 * 2. Redistributions in binary form must reproduce the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer in the | |
| 14 * documentation and/or other materials provided with the distribution. | |
| 15 * | |
| 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
| 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 26 * POSSIBILITY OF SUCH DAMAGE. | |
| 27 */ | |
| 28 | |
| 29 #ifndef IOSTREAM_H | |
| 30 #define IOSTREAM_H | |
| 31 | |
| 32 #include "../public/nsapi.h" | |
| 33 | |
| 34 #ifdef __cplusplus | |
| 35 extern "C" { | |
| 36 #endif | |
| 37 | |
| 38 typedef struct io_stream IOStream; | |
| 39 | |
| 40 typedef ssize_t(*io_write_f)(IOStream *, void *, size_t); | |
| 41 typedef ssize_t(*io_read_f)(IOStream *, void *, size_t); | |
| 42 | |
| 43 struct io_stream { | |
| 44 io_write_f write; | |
| 45 io_read_f read; | |
| 46 }; | |
| 47 | |
| 48 typedef struct SystemIOStream { | |
| 49 IOStream st; | |
| 50 int fd; | |
| 51 } SystemIOStream; | |
| 52 | |
| 53 typedef struct NetIOStream { | |
| 54 IOStream st; | |
| 55 int fd; | |
| 56 size_t max_read; | |
| 57 size_t rd; | |
| 58 } NetIOStream; | |
| 59 | |
| 60 | |
| 61 /* net_ functions */ | |
| 62 ssize_t net_read(SYS_NETFD fd, void *buf, size_t nbytes); | |
| 63 ssize_t net_write(SYS_NETFD fd, void *buf, size_t nbytes); | |
| 64 | |
| 65 | |
| 66 /* iovec buffer */ | |
| 67 typedef struct iovec_buf{ | |
| 68 struct iovec *iov; | |
| 69 int iovctn; | |
| 70 int maxiovec; | |
| 71 pool_handle_t *pool; | |
| 72 } iovec_buf_t; | |
| 73 | |
| 74 | |
| 75 /* system stream */ | |
| 76 IOStream* stream_new_from_fd(int fd); | |
| 77 | |
| 78 ssize_t system_write(IOStream *st, void *buf, size_t nbytes); | |
| 79 ssize_t system_read(IOStream *st, void *buf, size_t nbytes); | |
| 80 | |
| 81 /* net stream */ | |
| 82 IOStream* net_stream_from_fd(int fd); | |
| 83 | |
| 84 ssize_t net_stream_write(IOStream *st, void *buf, size_t nbytes); | |
| 85 ssize_t net_stream_read(IOStream *st, void *buf, size_t nbytes); | |
| 86 | |
| 87 /* iovec buffer */ | |
| 88 iovec_buf_t *iovec_buf_create(pool_handle_t *pool); | |
| 89 void iovec_buf_write(iovec_buf_t *io, void *buf, size_t nbyte); | |
| 90 ssize_t iovec_buf_flush(iovec_buf_t *io, int fd); | |
| 91 | |
| 92 | |
| 93 #ifdef __cplusplus | |
| 94 } | |
| 95 #endif | |
| 96 | |
| 97 #endif /* IOSTREAM_H */ | |
| 98 |
