projects / lttng-ust.git / blame
| Commit | Line | Data |
|---|---|---|
| f6da3aa6 MD |
1 | /* |
| 2 | * Copyright (C) 2009 Pierre-Marc Fournier | |
| 3 | * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
| 4 | * | |
| 5 | * This library is free software; you can redistribute it and/or | |
| 6 | * modify it under the terms of the GNU Lesser General Public | |
| 7 | * License as published by the Free Software Foundation; either | |
| 8 | * version 2.1 of the License, or (at your option) any later version. | |
| 9 | * | |
| 10 | * This library is distributed in the hope that it will be useful, | |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | * Lesser General Public License for more details. | |
| 14 | * | |
| 15 | * You should have received a copy of the GNU Lesser General Public | |
| 16 | * License along with this library; if not, write to the Free Software | |
| 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 18 | */ | |
| 19 | ||
| 20 | /* write() */ | |
| 21 | #include <unistd.h> | |
| 22 | ||
| 23 | /* send() */ | |
| 24 | #include <sys/types.h> | |
| 25 | #include <sys/socket.h> | |
| 26 | ||
| 27 | #include <errno.h> | |
| 28 | ||
| 29 | #include <share.h> | |
| 30 | ||
| 31 | /* | |
| 32 | * This write is patient because it restarts if it was incomplete. | |
| 33 | */ | |
| 34 | ||
| 35 | ssize_t patient_write(int fd, const void *buf, size_t count) | |
| 36 | { | |
| 37 | const char *bufc = (const char *) buf; | |
| 38 | int result; | |
| 39 | ||
| 40 | for(;;) { | |
| 41 | result = write(fd, bufc, count); | |
| 42 | if (result == -1 && errno == EINTR) { | |
| 43 | continue; | |
| 44 | } | |
| 45 | if (result <= 0) { | |
| 46 | return result; | |
| 47 | } | |
| 48 | count -= result; | |
| 49 | bufc += result; | |
| 50 | ||
| 51 | if (count == 0) { | |
| 52 | break; | |
| 53 | } | |
| 54 | } | |
| 55 | ||
| 56 | return bufc-(const char *)buf; | |
| 57 | } | |
| 58 | ||
| 59 | ssize_t patient_send(int fd, const void *buf, size_t count, int flags) | |
| 60 | { | |
| 61 | const char *bufc = (const char *) buf; | |
| 62 | int result; | |
| 63 | ||
| 64 | for(;;) { | |
| 65 | result = send(fd, bufc, count, flags); | |
| 66 | if (result == -1 && errno == EINTR) { | |
| 67 | continue; | |
| 68 | } | |
| 69 | if (result <= 0) { | |
| 70 | return result; | |
| 71 | } | |
| 72 | count -= result; | |
| 73 | bufc += result; | |
| 74 | ||
| 75 | if (count == 0) { | |
| 76 | break; | |
| 77 | } | |
| 78 | } | |
| 79 | ||
| 80 | return bufc - (const char *) buf; | |
| 81 | } |