#include <roken.h>
-#include <lwp.h> /*Lightweight process package */
+#include <pthread.h>
#include <afs/cellconfig.h>
#include <afs/afsint.h>
#include <afs/afsutil.h>
#include "fsprobe.h" /*Interface for this module */
-#define LWP_STACK_SIZE (16 * 1024)
-
/*
* Exported variables.
*/
static int fsprobe_initflag = 0; /*Was init routine called? */
static int fsprobe_debug = 0; /*Debugging output enabled? */
static int (*fsprobe_Handler) (void); /*Probe handler routine */
-static PROCESS probeLWP_ID; /*Probe LWP process ID */
+static pthread_t fsprobe_thread; /*Probe thread */
static int fsprobe_statsBytes; /*Num bytes in stats block */
static int fsprobe_probeOKBytes; /*Num bytes in probeOK block */
+static opr_mutex_t fsprobe_force_lock; /*Lock to force probe */
+static opr_cv_t fsprobe_force_cv; /*Condvar to force probe */
/*------------------------------------------------------------------------
* [private] fsprobe_CleanupInit
* [private] fsprobe_LWP
*
* Description:
- * This LWP iterates over the server connections and gathers up
+ * This thread iterates over the server connections and gathers up
* the desired statistics from each one on a regular basis. When
* the sweep is done, the associated handler function is called
* to process the new data.
static char rn[] = "fsprobe_LWP"; /*Routine name */
afs_int32 code; /*Results of calls */
struct timeval tv; /*Time structure */
+ struct timespec wait; /*Time to wait */
int conn_idx; /*Connection index */
struct fsprobe_ConnectionInfo *curr_conn; /*Current connection */
struct ProbeViceStatistics *curr_stats; /*Current stats region */
rn, code);
/*
- * Fall asleep for the prescribed number of seconds.
+ * Fall asleep for the prescribed number of seconds or wakeup
+ * sooner if forced.
*/
- tv.tv_sec = fsprobe_ProbeFreqInSecs;
- tv.tv_usec = 0;
- if (fsprobe_debug)
- fprintf(stderr, "[%s] Falling asleep for %d seconds\n", rn,
- fsprobe_ProbeFreqInSecs);
- code = IOMGR_Select(0, /*Num fids */
- 0, /*Descriptors ready for reading */
- 0, /*Descriptors ready for writing */
- 0, /*Descriptors w/exceptional conditions */
- &tv); /*Ptr to timeout structure */
- if (code)
- fprintf(stderr, "[%s] IOMGR_Select returned code %d\n", rn, code);
+ gettimeofday(&tv, NULL);
+ wait.tv_sec = tv.tv_sec + fsprobe_ProbeFreqInSecs;
+ wait.tv_nsec = tv.tv_usec * 1000;
+ opr_mutex_enter(&fsprobe_force_lock);
+ code = opr_cv_timedwait(&fsprobe_force_cv, &fsprobe_force_lock, &wait);
+ opr_Assert(code == 0 || code == ETIMEDOUT);
+ opr_mutex_exit(&fsprobe_force_lock);
} /*Service loop */
AFS_UNREACHED(free(stats64.ViceStatistics64_val));
AFS_UNREACHED(return(NULL));
*
* Description:
* Initialize the fsprobe module: set up Rx connections to the
- * given set of servers, start up the probe and callback LWPs,
+ * given set of servers, start up the probe and callback threads,
* and associate the routine to be called when a probe completes.
*
* Arguments:
* Returns:
* 0 on success,
* -2 for (at least one) connection error,
- * LWP process creation code, if it failed,
+ * thread process creation code, if it failed,
* -1 for other fatal errors.
*
* Environment:
} else
fsprobe_initflag = 1;
+ opr_mutex_init(&fsprobe_force_lock);
+ opr_cv_init(&fsprobe_force_cv);
+
/*
* Check the parameters for bogosities.
*/
(a_numServers * sizeof(struct fsprobe_ConnectionInfo)));
return (-1); /*No cleanup needs to be done yet */
}
-#if 0
- else
- fprintf(stderr, "[%s] fsprobe_ConnInfo allocated (%d bytes)\n", rn,
- a_numServers * sizeof(struct fsprobe_ConnectionInfo));
-#endif /* 0 */
fsprobe_statsBytes = a_numServers * sizeof(struct ProbeViceStatistics);
fsprobe_Results.stats = (struct ProbeViceStatistics *)
/*
* Create a null Rx client security object, to be used by the
- * probe LWP.
+ * probe thread.
*/
secobj = rxnull_NewClientSecurityObject();
if (secobj == (struct rx_securityClass *)0) {
fprintf(stderr,
- "[%s] Can't create client security object for probe LWP.\n",
+ "[%s] Can't create client security object for probe thread.\n",
rn);
fsprobe_Cleanup(1); /*Delete already-malloc'ed areas */
return (-1);
}
if (fsprobe_debug)
- fprintf(stderr, "[%s] Probe LWP client security object created\n",
+ fprintf(stderr, "[%s] Probe thread client security object created\n",
rn);
curr_conn = fsprobe_ConnInfo;
*/
if (fsprobe_debug)
fprintf(stderr, "[%s] Starting up callback listener.\n", rn);
- rx_StartServer(0 /*Don't donate yourself to LWP pool */ );
+ rx_StartServer(0 /*Don't donate yourself to thread pool */ );
/*
- * Start up the probe LWP.
+ * Start up the probe thread.
*/
if (fsprobe_debug)
- fprintf(stderr, "[%s] Creating the probe LWP\n", rn);
- code = LWP_CreateProcess(fsprobe_LWP, /*Function to start up */
- LWP_STACK_SIZE, /*Stack size in bytes */
- 1, /*Priority */
- (void *)0, /*Parameters */
- "fsprobe Worker", /*Name to use */
- &probeLWP_ID); /*Returned LWP process ID */
+ fprintf(stderr, "[%s] Creating the probe thread\n", rn);
+ code = pthread_create(&fsprobe_thread, NULL, fsprobe_LWP, NULL);
if (code) {
- fprintf(stderr, "[%s] Can't create fsprobe LWP! Error is %d\n", rn,
+ fprintf(stderr, "[%s] Can't create fsprobe thread! Error is %d\n", rn,
code);
fsprobe_Cleanup(1); /*Delete already-malloc'ed areas */
return (code);
}
- if (fsprobe_debug)
- fprintf(stderr, "[%s] Probe LWP process structure located at %p\n",
- rn, probeLWP_ID);
-
-#if 0
- /*
- * Do I need to do this?
- */
- if (fsprobe_debug)
- fprintf(stderr, "[%s] Calling osi_Wakeup()\n", rn);
- osi_Wakeup(&rxsrv_afsserver); /*Wake up anyone waiting for it */
-#endif /* 0 */
/*
* Return the final results.
* [exported] fsprobe_ForceProbeNow
*
* Description:
- * Wake up the probe LWP, forcing it to execute a probe immediately.
+ * Wake up the probe thread, forcing it to execute a probe immediately.
*
* Arguments:
* None.
/*
* Kick the sucker in the side.
*/
- IOMGR_Cancel(probeLWP_ID);
+ opr_mutex_enter(&fsprobe_force_lock);
+ opr_cv_signal(&fsprobe_force_cv);
+ opr_mutex_exit(&fsprobe_force_lock);
/*
* We did it, so report the happy news.
while (1) {
tv.tv_sec = 30;
tv.tv_usec = 0;
- code = IOMGR_Select(0, 0, 0, 0, &tv);
- if (code != 0)
+ code = select(0, 0, 0, 0, &tv);
+ if (code < 0)
break;
}
} else {
tv.tv_sec = sleep_secs;
tv.tv_usec = 0;
- code = IOMGR_Select(0, 0, 0, 0, &tv);
+ code = select(0, 0, 0, 0, &tv);
}
return code;
}
git://git.openafs.org / openafs.git / blobdiff