]>
Commit | Line | Data |
---|---|---|
7230e6d0 RS |
1 | #include "cache.h" |
2 | ||
75025ccd SP |
3 | void read_or_die(int fd, void *buf, size_t count) |
4 | { | |
5 | char *p = buf; | |
6 | ssize_t loaded; | |
7 | ||
8 | while (count > 0) { | |
9 | loaded = xread(fd, p, count); | |
10 | if (loaded == 0) | |
11 | die("unexpected end of file"); | |
12 | else if (loaded < 0) | |
13 | die("read error (%s)", strerror(errno)); | |
14 | count -= loaded; | |
15 | p += loaded; | |
16 | } | |
17 | } | |
18 | ||
7230e6d0 RS |
19 | void write_or_die(int fd, const void *buf, size_t count) |
20 | { | |
21 | const char *p = buf; | |
22 | ssize_t written; | |
23 | ||
24 | while (count > 0) { | |
25 | written = xwrite(fd, p, count); | |
26 | if (written == 0) | |
27 | die("disk full?"); | |
28 | else if (written < 0) { | |
29 | if (errno == EPIPE) | |
30 | exit(0); | |
31 | die("write error (%s)", strerror(errno)); | |
32 | } | |
33 | count -= written; | |
34 | p += written; | |
35 | } | |
36 | } | |
7cf67205 CC |
37 | |
38 | int write_or_whine(int fd, const void *buf, size_t count, const char *msg) | |
39 | { | |
40 | const char *p = buf; | |
41 | ssize_t written; | |
42 | ||
43 | while (count > 0) { | |
44 | written = xwrite(fd, p, count); | |
45 | if (written == 0) { | |
46 | fprintf(stderr, "%s: disk full?\n", msg); | |
47 | return 0; | |
48 | } | |
49 | else if (written < 0) { | |
50 | if (errno == EPIPE) | |
51 | exit(0); | |
52 | fprintf(stderr, "%s: write error (%s)\n", | |
53 | msg, strerror(errno)); | |
54 | return 0; | |
55 | } | |
56 | count -= written; | |
57 | p += written; | |
58 | } | |
59 | ||
60 | return 1; | |
61 | } | |
825cee7b AW |
62 | |
63 | int write_in_full(int fd, const void *buf, size_t count, const char *msg) | |
64 | { | |
65 | const char *p = buf; | |
66 | ssize_t written; | |
67 | ||
68 | while (count > 0) { | |
69 | written = xwrite(fd, p, count); | |
70 | if (written == 0) { | |
71 | fprintf(stderr, "%s: disk full?\n", msg); | |
72 | return 0; | |
73 | } | |
74 | else if (written < 0) { | |
75 | fprintf(stderr, "%s: write error (%s)\n", | |
76 | msg, strerror(errno)); | |
77 | return 0; | |
78 | } | |
79 | count -= written; | |
80 | p += written; | |
81 | } | |
82 | ||
83 | return 1; | |
84 | } |