diff options
Diffstat (limited to 'sysklogd/logread.c')
-rw-r--r-- | sysklogd/logread.c | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/sysklogd/logread.c b/sysklogd/logread.c index 6567df374..51fb7a0ba 100644 --- a/sysklogd/logread.c +++ b/sysklogd/logread.c | |||
@@ -18,16 +18,30 @@ | |||
18 | 18 | ||
19 | enum { KEY_ID = 0x414e4547 }; /* "GENA" */ | 19 | enum { KEY_ID = 0x414e4547 }; /* "GENA" */ |
20 | 20 | ||
21 | static struct shbuf_ds { | 21 | struct shbuf_ds { |
22 | int32_t size; // size of data - 1 | 22 | int32_t size; // size of data - 1 |
23 | int32_t tail; // end of message list | 23 | int32_t tail; // end of message list |
24 | char data[1]; // messages | 24 | char data[1]; // messages |
25 | } *shbuf; | 25 | }; |
26 | 26 | ||
27 | // Semaphore operation structures | 27 | static const struct sembuf init_sem[3] = { |
28 | static struct sembuf SMrup[1] = {{0, -1, IPC_NOWAIT | SEM_UNDO}}; // set SMrup | 28 | {0, -1, IPC_NOWAIT | SEM_UNDO}, |
29 | static struct sembuf SMrdn[2] = {{1, 0}, {0, +1, SEM_UNDO}}; // set SMrdn | 29 | {1, 0}, {0, +1, SEM_UNDO} |
30 | 30 | }; | |
31 | |||
32 | struct globals { | ||
33 | struct sembuf SMrup[1]; // {0, -1, IPC_NOWAIT | SEM_UNDO}, | ||
34 | struct sembuf SMrdn[2]; // {1, 0}, {0, +1, SEM_UNDO} | ||
35 | struct shbuf_ds *shbuf; | ||
36 | }; | ||
37 | #define G (*(struct globals*)&bb_common_bufsiz1) | ||
38 | #define SMrup (G.SMrup) | ||
39 | #define SMrdn (G.SMrdn) | ||
40 | #define shbuf (G.shbuf) | ||
41 | #define INIT_G() \ | ||
42 | do { \ | ||
43 | memcpy(SMrup, init_sem, sizeof(init_sem)); \ | ||
44 | } while (0) | ||
31 | 45 | ||
32 | static void error_exit(const char *str) ATTRIBUTE_NORETURN; | 46 | static void error_exit(const char *str) ATTRIBUTE_NORETURN; |
33 | static void error_exit(const char *str) | 47 | static void error_exit(const char *str) |