| 1 | #ifndef UST_SHARE_H |
| 2 | #define UST_SHARE_H |
| 3 | |
| 4 | #include <unistd.h> |
| 5 | #include <errno.h> |
| 6 | |
| 7 | /* This write is patient because it restarts if it was incomplete. |
| 8 | */ |
| 9 | |
| 10 | static inline ssize_t patient_write(int fd, const void *buf, size_t count) |
| 11 | { |
| 12 | const char *bufc = (const char *) buf; |
| 13 | int result; |
| 14 | |
| 15 | for(;;) { |
| 16 | result = write(fd, bufc, count); |
| 17 | if(result == -1 && errno == EINTR) { |
| 18 | continue; |
| 19 | } |
| 20 | if(result <= 0) { |
| 21 | return result; |
| 22 | } |
| 23 | count -= result; |
| 24 | bufc += result; |
| 25 | |
| 26 | if(count == 0) { |
| 27 | break; |
| 28 | } |
| 29 | } |
| 30 | |
| 31 | return bufc-(const char *)buf; |
| 32 | } |
| 33 | |
| 34 | #endif /* UST_SHARE_H */ |