version 1.5.14.2, 2012/08/01 09:37:20
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version 1.5.14.3, 2012/08/02 00:38:24
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Line 137 io_rread(int fd, void * __restrict buf, size_t nbytes,
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Line 137 io_rread(int fd, void * __restrict buf, size_t nbytes,
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* @nbytes = Write bytes from buffer |
* @nbytes = Write bytes from buffer |
* @offset = Write at position, if -1 write nbytes from current position |
* @offset = Write at position, if -1 write nbytes from current position |
* @update = Update file handle position !0 |
* @update = Update file handle position !0 |
* return: -1 error or !=-1 writed bytes | * return: -1 error or !=-1 written bytes |
*/ |
*/ |
inline int |
inline int |
io_rwrite(int fd, void * __restrict buf, size_t nbytes, off_t offset, int update) |
io_rwrite(int fd, void * __restrict buf, size_t nbytes, off_t offset, int update) |
Line 193 io_rwrite(int fd, void * __restrict buf, size_t nbytes
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Line 193 io_rwrite(int fd, void * __restrict buf, size_t nbytes
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if (update) |
if (update) |
lseek(fd, offset + ret, SEEK_SET); |
lseek(fd, offset + ret, SEEK_SET); |
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return ret; |
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} |
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#ifdef AIO_OPS |
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/* |
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* io_aiobulk() - AIO bulk R/W function |
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* |
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* @mode = Bulk wait mode |
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* @acbs = List of aiocb structures |
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* @nacb = Number of aiocb in list |
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* @sig = Event for completed operations, may be =NULL |
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* return: -1 error or 0 ok |
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*/ |
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inline int |
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io_aiobulk(int mode, struct aiocb ** __restrict acbs, int nacb, struct sigevent *sig) |
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{ |
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int ret; |
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if (!acbs) { |
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io_SetErr(EINVAL, "Invalid arguments"); |
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return -1; |
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} |
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if (!nacb) |
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return 0; |
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if ((ret = lio_listio(mode, acbs, nacb, sig)) == -1) |
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LOGERR; |
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return ret; |
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} |
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#endif |
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/* |
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* io_rreadv() - Raw VFS bulk read function |
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* |
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* @fd = File handle |
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* @bufs = Read buffers |
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* @nbufs = Number of read buffers |
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* @offset = Read from position, if -1 read nbytes from current position |
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* @update = Update file handle position !0 |
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* return: -1 error or !=-1 readed bytes |
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*/ |
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int |
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io_rreadv(int fd, struct iovec * __restrict bufs, int nbufs, off_t offset, int update) |
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{ |
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int ret; |
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#ifdef AIO_OPS |
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register int i; |
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off_t off, old = 0; |
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struct aiocb **acb; |
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#endif |
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if (!bufs) { |
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io_SetErr(EINVAL, "Invalid arguments"); |
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return -1; |
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} |
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if (!nbufs) |
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return 0; |
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if (offset == -1) { |
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offset = lseek(fd, 0, SEEK_CUR); |
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if (offset == -1) { |
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LOGERR; |
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return -1; |
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} |
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} |
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#ifdef AIO_OPS |
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/* This made for generate EOF for file */ |
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if (!update && (old = lseek(fd, 0, SEEK_CUR)) == -1) { |
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LOGERR; |
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return -1; |
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} |
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if (offset >= lseek(fd, 0, SEEK_END)) |
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return 0; |
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if (!update) |
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lseek(fd, old, SEEK_SET); |
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acb = io_calloc(sizeof(void*), nbufs); |
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if (!acb) { |
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LOGERR; |
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return -1; |
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} |
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memset(acb, 0, sizeof(void*) * nbufs); |
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for (i = 0, off = offset; i < nbufs; off += bufs[i++].iov_len) { |
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acb[i] = io_malloc(sizeof(struct aiocb)); |
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if (!acb[i]) { |
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LOGERR; |
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for (i = 0; i < nbufs; i++) |
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if (acb[i]) |
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io_free(acb[i]); |
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io_free(acb); |
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return -1; |
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} else |
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memset(acb[i], 0, sizeof(struct aiocb)); |
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acb[i]->aio_fildes = fd; |
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acb[i]->aio_nbytes = bufs[i].iov_len; |
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acb[i]->aio_buf = bufs[i].iov_base; |
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acb[i]->aio_offset = off; |
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acb[i]->aio_lio_opcode = LIO_READ; |
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} |
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ret = io_aiobulk(LIO_WAIT, acb, nbufs, NULL); |
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if (ret == -1) { |
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LOGERR; |
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for (i = 0; i < nbufs; i++) |
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if (acb[i]) |
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io_free(acb[i]); |
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io_free(acb); |
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return -1; |
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} |
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for (i = 0; i < nbufs; i++) { |
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bufs[i].iov_len = aio_return(acb[i]); |
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offset += bufs[i].iov_len; |
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if (acb[i]) |
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io_free(acb[i]); |
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} |
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io_free(acb); |
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#else |
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ret = preadv(fd, bufs, nbufs, offset); |
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if (ret == -1) { |
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LOGERR; |
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return -1; |
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} else |
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offset += ret; |
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#endif |
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if (update) |
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lseek(fd, offset, SEEK_SET); |
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return ret; |
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} |
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/* |
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* io_rwritev() - Raw VFS bulk write function |
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* |
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* @fd = File handle |
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* @bufs = Write buffers |
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* @nbufs = Number of write buffers |
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* @offset = Write to position, if -1 write nbytes to current position |
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* @update = Update file handle position !0 |
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* return: -1 error or !=-1 written bytes |
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*/ |
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int |
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io_rwritev(int fd, struct iovec * __restrict bufs, int nbufs, off_t offset, int update) |
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{ |
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int ret; |
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#ifdef AIO_OPS |
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register int i; |
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struct aiocb **acb; |
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off_t off; |
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#endif |
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if (!bufs) { |
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io_SetErr(EINVAL, "Invalid arguments"); |
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return -1; |
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} |
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if (!nbufs) |
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return 0; |
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if (offset == -1) { |
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offset = lseek(fd, 0, SEEK_CUR); |
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if (offset == -1) { |
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LOGERR; |
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return -1; |
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} |
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} |
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#ifdef AIO_OPS |
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acb = io_calloc(sizeof(void*), nbufs); |
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if (!acb) { |
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LOGERR; |
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return -1; |
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} else |
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memset(acb, 0, sizeof(void*) * nbufs); |
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for (i = 0, off = offset; i < nbufs; off += bufs[i++].iov_len) { |
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acb[i] = io_malloc(sizeof(struct aiocb)); |
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if (!acb[i]) { |
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LOGERR; |
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for (i = 0; i < nbufs; i++) |
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if (acb[i]) |
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io_free(acb[i]); |
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io_free(acb); |
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return -1; |
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} else |
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memset(acb[i], 0, sizeof(struct aiocb)); |
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acb[i]->aio_fildes = fd; |
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acb[i]->aio_nbytes = bufs[i].iov_len; |
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acb[i]->aio_buf = bufs[i].iov_base; |
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acb[i]->aio_offset = off; |
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acb[i]->aio_lio_opcode = LIO_WRITE; |
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} |
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ret = io_aiobulk(LIO_WAIT, acb, nbufs, NULL); |
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if (ret == -1) { |
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LOGERR; |
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for (i = 0; i < nbufs; i++) |
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if (acb[i]) |
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io_free(acb[i]); |
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io_free(acb); |
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return -1; |
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} |
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for (i = 0; i < nbufs; i++) { |
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bufs[i].iov_len = aio_return(acb[i]); |
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offset += bufs[i].iov_len; |
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if (acb[i]) |
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io_free(acb[i]); |
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} |
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io_free(acb); |
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#else |
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ret = pwritev(fd, bufs, nbufs, offset); |
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if (ret == -1) { |
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LOGERR; |
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return -1; |
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} else |
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offset += ret; |
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#endif |
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if (update) |
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lseek(fd, offset, SEEK_SET); |
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return ret; |
return ret; |
} |
} |