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Extra flags RS_SIGNALED and RS_EXECFAILED. Pipe for detecting exec failures.

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Philip Homburg 2007-04-23 14:42:08 +00:00
parent b4a88a3705
commit e68a2b4d6a
1 changed files with 9 additions and 0 deletions
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9
servers/rs/manager.h
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@ -62,6 +62,13 @@ extern struct rproc {
/* Mapping for fast access to the system process table. */
extern struct rproc *rproc_ptr[NR_PROCS];
/* Pipe for detection of exec failures. The pipe is close-on-exec, and
* no data will be written to the pipe if the exec succeeds. After an
* exec failure, the slot number is written to the pipe. After each exit,
* a non-blocking read retrieves the slot number from the pipe.
*/
int exec_pipe[2];
/* Flag values. */
#define RS_IN_USE 0x001 /* set when process slot is in use */
#define RS_EXITING 0x004 /* set when exit is expected */
@ -70,6 +77,8 @@ extern struct rproc *rproc_ptr[NR_PROCS];
#define RS_KILLED 0x020 /* driver is killed */
#define RS_CRASHED 0x040 /* driver crashed */
#define RS_LATEREPLY 0x080 /* no reply sent to RS_DOWN caller yet */
#define RS_SIGNALED 0x100 /* driver crashed */
#define RS_EXECFAILED 0x200 /* exec failed */
/* Constants determining RS period and binary exponential backoff. */
#define RS_DELTA_T 60 /* check every T ticks */