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-rw-r--r--os/kernel/include/chevents.h9
-rw-r--r--os/kernel/src/chevents.c75
-rw-r--r--os/ports/GCC/ARM/chtypes.h3
-rw-r--r--os/ports/GCC/ARMCMx/chtypes.h3
-rw-r--r--os/ports/GCC/AVR/chtypes.h3
-rw-r--r--os/ports/GCC/MSP430/chtypes.h3
-rw-r--r--os/ports/GCC/PPC/chtypes.h5
-rw-r--r--os/ports/GCC/SIMIA32/chtypes.h3
-rw-r--r--os/ports/IAR/ARMCMx/chtypes.h3
-rw-r--r--os/ports/IAR/STM8/chtypes.h3
-rw-r--r--os/ports/RC/STM8/chtypes.h3
-rw-r--r--os/ports/RVCT/ARMCMx/chtypes.h3
-rw-r--r--os/ports/cosmic/STM8/chtypes.h3
-rw-r--r--readme.txt3
-rw-r--r--test/testevt.c2
15 files changed, 95 insertions, 29 deletions
diff --git a/os/kernel/include/chevents.h b/os/kernel/include/chevents.h
index d4ac87ef3..7550ca2b7 100644
--- a/os/kernel/include/chevents.h
+++ b/os/kernel/include/chevents.h
@@ -17,6 +17,9 @@
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+/*
+ Concepts and parts of this file have been contributed by Scott (skute).
+ */
/**
* @file chevents.h
@@ -45,6 +48,8 @@ struct EventListener {
eventmask_t el_mask; /**< @brief Event flags mask associated
by the thread to the Event
Source. */
+ flagsmask_t el_flags; /**< @brief Flags added to the listener
+ bu the event source.*/
};
/**
@@ -166,8 +171,8 @@ extern "C" {
void chEvtUnregister(EventSource *esp, EventListener *elp);
eventmask_t chEvtClearFlags(eventmask_t mask);
eventmask_t chEvtAddFlags(eventmask_t mask);
- void chEvtSignalFlags(Thread *tp, eventmask_t mask);
- void chEvtSignalFlagsI(Thread *tp, eventmask_t mask);
+ void chEvtSignal(Thread *tp, eventmask_t mask);
+ void chEvtSignalI(Thread *tp, eventmask_t mask);
void chEvtBroadcastFlags(EventSource *esp, eventmask_t mask);
void chEvtBroadcastFlagsI(EventSource *esp, eventmask_t mask);
void chEvtDispatch(const evhandler_t *handlers, eventmask_t mask);
diff --git a/os/kernel/src/chevents.c b/os/kernel/src/chevents.c
index 2b3247543..3518b6975 100644
--- a/os/kernel/src/chevents.c
+++ b/os/kernel/src/chevents.c
@@ -17,6 +17,9 @@
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+/*
+ Concepts and parts of this file have been contributed by Scott (skute).
+ */
/**
* @file chevents.c
@@ -77,10 +80,11 @@ void chEvtRegisterMask(EventSource *esp, EventListener *elp, eventmask_t mask) {
chDbgCheck((esp != NULL) && (elp != NULL), "chEvtRegisterMask");
chSysLock();
- elp->el_next = esp->es_next;
- esp->es_next = elp;
+ elp->el_next = esp->es_next;
+ esp->es_next = elp;
elp->el_listener = currp;
- elp->el_mask = mask;
+ elp->el_mask = mask;
+ elp->el_flags = 0;
chSysUnlock();
}
@@ -154,25 +158,25 @@ eventmask_t chEvtAddFlags(eventmask_t mask) {
}
/**
- * @brief Adds (OR) a set of event flags on the specified @p Thread.
+ * @brief Adds a set of event flags directly to specified @p Thread.
*
* @param[in] tp the thread to be signaled
* @param[in] mask the event flags set to be ORed
*
* @api
*/
-void chEvtSignalFlags(Thread *tp, eventmask_t mask) {
+void chEvtSignal(Thread *tp, eventmask_t mask) {
chDbgCheck(tp != NULL, "chEvtSignal");
chSysLock();
- chEvtSignalFlagsI(tp, mask);
+ chEvtSignalI(tp, mask);
chSchRescheduleS();
chSysUnlock();
}
/**
- * @brief Adds (OR) a set of event flags on the specified @p Thread.
+ * @brief Adds a set of event flags directly to specified @p Thread.
* @post This function does not reschedule so a call to a rescheduling
* function must be performed before unlocking the kernel. Note that
* interrupt handlers always reschedule on exit so an explicit
@@ -183,7 +187,7 @@ void chEvtSignalFlags(Thread *tp, eventmask_t mask) {
*
* @iclass
*/
-void chEvtSignalFlagsI(Thread *tp, eventmask_t mask) {
+void chEvtSignalI(Thread *tp, eventmask_t mask) {
chDbgCheckClassI();
chDbgCheck(tp != NULL, "chEvtSignalI");
@@ -206,14 +210,14 @@ void chEvtSignalFlagsI(Thread *tp, eventmask_t mask) {
* @p EventListener objects.
*
* @param[in] esp pointer to the @p EventSource structure
- * @param[in] mask the event flags set to be ORed
+ * @param[in] flags the flags set to be added to the listener flags mask
*
* @api
*/
-void chEvtBroadcastFlags(EventSource *esp, eventmask_t mask) {
+void chEvtBroadcastFlags(EventSource *esp, flagsmask_t flags) {
chSysLock();
- chEvtBroadcastFlagsI(esp, mask);
+ chEvtBroadcastFlagsI(esp, flags);
chSchRescheduleS();
chSysUnlock();
}
@@ -231,11 +235,11 @@ void chEvtBroadcastFlags(EventSource *esp, eventmask_t mask) {
* reschedule must not be performed in ISRs.
*
* @param[in] esp pointer to the @p EventSource structure
- * @param[in] mask the event flags set to be ORed
+ * @param[in] flags the flags set to be added to the listener flags mask
*
* @iclass
*/
-void chEvtBroadcastFlagsI(EventSource *esp, eventmask_t mask) {
+void chEvtBroadcastFlagsI(EventSource *esp, flagsmask_t flags) {
EventListener *elp;
chDbgCheckClassI();
@@ -243,12 +247,55 @@ void chEvtBroadcastFlagsI(EventSource *esp, eventmask_t mask) {
elp = esp->es_next;
while (elp != (EventListener *)esp) {
- chEvtSignalFlagsI(elp->el_listener, elp->el_mask | mask);
+ elp->el_flags |= flags;
+ chEvtSignalI(elp->el_listener, elp->el_mask);
elp = elp->el_next;
}
}
/**
+ * @brief Returns the flags associated to an @p EventListener.
+ * @details The flags are returned and the @p EventListener flags mask is
+ * cleared.
+ *
+ * @param[in] elp pointer to the @p EventListener structure
+ * @return The flags added to the listener by the associated
+ * event source.
+ *
+ * @iclass
+ */
+flagsmask_t chEvtGetAndClearFlagsI(EventListener *elp) {
+ flagsmask_t flags;
+
+ flags = elp->el_flags;
+ elp->el_flags = 0;
+
+ return flags;
+}
+
+/**
+ * @brief Returns the flags associated to an @p EventListener.
+ * @details The flags are returned and the @p EventListener flags mask is
+ * cleared.
+ *
+ * @param[in] elp pointer to the @p EventListener structure
+ * @return The flags added to the listener by the associated
+ * event source.
+ *
+ * @iclass
+ */
+flagsmask_t chEvtGetAndClearFlags(EventListener *elp) {
+ flagsmask_t flags;
+
+ chSysLock();
+ flags = elp->el_flags;
+ elp->el_flags = 0;
+ chSysUnlock();
+
+ return flags;
+}
+
+/**
* @brief Invokes the event handlers associated to an event flags mask.
*
* @param[in] mask mask of the event flags to be dispatched
diff --git a/os/ports/GCC/ARM/chtypes.h b/os/ports/GCC/ARM/chtypes.h
index eb0c04c77..a4067e915 100644
--- a/os/ports/GCC/ARM/chtypes.h
+++ b/os/ports/GCC/ARM/chtypes.h
@@ -46,7 +46,8 @@ typedef uint8_t tslices_t; /**< Thread time slices counter. */
typedef uint32_t tprio_t; /**< Thread priority. */
typedef int32_t msg_t; /**< Inter-thread message. */
typedef int32_t eventid_t; /**< Event Id. */
-typedef uint32_t eventmask_t; /**< Events mask. */
+typedef uint32_t eventmask_t; /**< Event mask. */
+typedef uint32_t flagsmask_t; /**< Event flags. */
typedef uint32_t systime_t; /**< System time. */
typedef int32_t cnt_t; /**< Resources counter. */
diff --git a/os/ports/GCC/ARMCMx/chtypes.h b/os/ports/GCC/ARMCMx/chtypes.h
index 4d896fea0..70feda2fe 100644
--- a/os/ports/GCC/ARMCMx/chtypes.h
+++ b/os/ports/GCC/ARMCMx/chtypes.h
@@ -44,7 +44,8 @@ typedef uint8_t tslices_t; /**< Thread time slices counter. */
typedef uint32_t tprio_t; /**< Thread priority. */
typedef int32_t msg_t; /**< Inter-thread message. */
typedef int32_t eventid_t; /**< Event Id. */
-typedef uint32_t eventmask_t; /**< Events mask. */
+typedef uint32_t eventmask_t; /**< Event mask. */
+typedef uint32_t flagsmask_t; /**< Event flags. */
typedef uint32_t systime_t; /**< System time. */
typedef int32_t cnt_t; /**< Resources counter. */
diff --git a/os/ports/GCC/AVR/chtypes.h b/os/ports/GCC/AVR/chtypes.h
index 0c8197823..96ed68aa3 100644
--- a/os/ports/GCC/AVR/chtypes.h
+++ b/os/ports/GCC/AVR/chtypes.h
@@ -46,7 +46,8 @@ typedef uint8_t tslices_t; /**< Thread time slices counter. */
typedef uint8_t tprio_t; /**< Thread priority. */
typedef int16_t msg_t; /**< Inter-thread message. */
typedef uint8_t eventid_t; /**< Event Id. */
-typedef uint8_t eventmask_t; /**< Events mask. */
+typedef uint8_t eventmask_t; /**< Event mask. */
+typedef uint8_t flagsmask_t; /**< Event flags. */
typedef uint16_t systime_t; /**< System time. */
typedef int8_t cnt_t; /**< Resources counter. */
diff --git a/os/ports/GCC/MSP430/chtypes.h b/os/ports/GCC/MSP430/chtypes.h
index a56351016..d195f3fb3 100644
--- a/os/ports/GCC/MSP430/chtypes.h
+++ b/os/ports/GCC/MSP430/chtypes.h
@@ -46,7 +46,8 @@ typedef uint8_t tslices_t; /**< Thread time slices counter. */
typedef uint16_t tprio_t; /**< Thread priority. */
typedef int16_t msg_t; /**< Inter-thread message. */
typedef int16_t eventid_t; /**< Event Id. */
-typedef uint16_t eventmask_t; /**< Events mask. */
+typedef uint16_t eventmask_t; /**< Event mask. */
+typedef uint16_t flagsmask_t; /**< Event flags. */
typedef uint16_t systime_t; /**< System time. */
typedef int16_t cnt_t; /**< Resources counter. */
diff --git a/os/ports/GCC/PPC/chtypes.h b/os/ports/GCC/PPC/chtypes.h
index debc5f0f8..3a1844ef9 100644
--- a/os/ports/GCC/PPC/chtypes.h
+++ b/os/ports/GCC/PPC/chtypes.h
@@ -54,11 +54,12 @@ typedef int32_t bool_t; /**< Fast boolean type. */
typedef uint8_t tmode_t; /**< Thread flags. */
typedef uint8_t tstate_t; /**< Thread state. */
typedef uint8_t trefs_t; /**< Thread references counter. */
-typedef uint8_t tslices_t; /**< Thread time slices counter. */
+typedef uint8_t tslices_t; /**< Thread time slices counter.*/
typedef uint32_t tprio_t; /**< Thread priority. */
typedef int32_t msg_t; /**< Inter-thread message. */
typedef int32_t eventid_t; /**< Event Id. */
-typedef uint32_t eventmask_t; /**< Events mask. */
+typedef uint32_t eventmask_t; /**< Event mask. */
+typedef uint32_t flagsmask_t; /**< Event flags. */
typedef uint32_t systime_t; /**< System time. */
typedef int32_t cnt_t; /**< Resources counter. */
diff --git a/os/ports/GCC/SIMIA32/chtypes.h b/os/ports/GCC/SIMIA32/chtypes.h
index 54d701044..7b24597c2 100644
--- a/os/ports/GCC/SIMIA32/chtypes.h
+++ b/os/ports/GCC/SIMIA32/chtypes.h
@@ -38,7 +38,8 @@ typedef uint8_t tslices_t; /**< Thread time slices counter. */
typedef uint32_t tprio_t; /**< Thread priority. */
typedef int32_t msg_t; /**< Inter-thread message. */
typedef int32_t eventid_t; /**< Event Id. */
-typedef uint32_t eventmask_t; /**< Events mask. */
+typedef uint32_t eventmask_t; /**< Event mask. */
+typedef uint32_t flagsmask_t; /**< Event flags. */
typedef uint32_t systime_t; /**< System time. */
typedef int32_t cnt_t; /**< Resources counter. */
diff --git a/os/ports/IAR/ARMCMx/chtypes.h b/os/ports/IAR/ARMCMx/chtypes.h
index 221b2819b..ec370ba3e 100644
--- a/os/ports/IAR/ARMCMx/chtypes.h
+++ b/os/ports/IAR/ARMCMx/chtypes.h
@@ -44,7 +44,8 @@ typedef uint8_t tslices_t; /**< Thread time slices counter. */
typedef uint32_t tprio_t; /**< Thread priority. */
typedef int32_t msg_t; /**< Inter-thread message. */
typedef int32_t eventid_t; /**< Event Id. */
-typedef uint32_t eventmask_t; /**< Events mask. */
+typedef uint32_t eventmask_t; /**< Event mask. */
+typedef uint32_t flagsmask_t; /**< Event flags. */
typedef uint32_t systime_t; /**< System time. */
typedef int32_t cnt_t; /**< Resources counter. */
diff --git a/os/ports/IAR/STM8/chtypes.h b/os/ports/IAR/STM8/chtypes.h
index a7f2d423b..a5753f410 100644
--- a/os/ports/IAR/STM8/chtypes.h
+++ b/os/ports/IAR/STM8/chtypes.h
@@ -45,7 +45,8 @@ typedef uint8_t tslices_t; /**< Thread time slices counter. */
typedef uint8_t tprio_t; /**< Thread priority. */
typedef int16_t msg_t; /**< Inter-thread message. */
typedef int8_t eventid_t; /**< Event Id. */
-typedef uint8_t eventmask_t; /**< Events mask. */
+typedef uint8_t eventmask_t; /**< Event mask. */
+typedef uint8_t flagsmask_t; /**< Event flags. */
typedef uint16_t systime_t; /**< System time. */
typedef int8_t cnt_t; /**< Resources counter. */
diff --git a/os/ports/RC/STM8/chtypes.h b/os/ports/RC/STM8/chtypes.h
index 7d5ebdb31..b87d77baa 100644
--- a/os/ports/RC/STM8/chtypes.h
+++ b/os/ports/RC/STM8/chtypes.h
@@ -55,7 +55,8 @@ typedef uint8_t tslices_t; /**< Thread time slices counter. */
typedef uint8_t tprio_t; /**< Thread priority. */
typedef int16_t msg_t; /**< Inter-thread message. */
typedef int8_t eventid_t; /**< Event Id. */
-typedef uint8_t eventmask_t; /**< Events mask. */
+typedef uint8_t eventmask_t; /**< Event mask. */
+typedef uint8_t flagsmask_t; /**< Event flags. */
typedef uint16_t systime_t; /**< System time. */
typedef int8_t cnt_t; /**< Resources counter. */
diff --git a/os/ports/RVCT/ARMCMx/chtypes.h b/os/ports/RVCT/ARMCMx/chtypes.h
index 8619dcdfe..7c0bbd72e 100644
--- a/os/ports/RVCT/ARMCMx/chtypes.h
+++ b/os/ports/RVCT/ARMCMx/chtypes.h
@@ -44,7 +44,8 @@ typedef uint8_t tslices_t; /**< Thread time slices counter. */
typedef uint32_t tprio_t; /**< Thread priority. */
typedef int32_t msg_t; /**< Inter-thread message. */
typedef int32_t eventid_t; /**< Event Id. */
-typedef uint32_t eventmask_t; /**< Events mask. */
+typedef uint32_t eventmask_t; /**< Event mask. */
+typedef uint32_t flagsmask_t; /**< Event flags. */
typedef uint32_t systime_t; /**< System time. */
typedef int32_t cnt_t; /**< Resources counter. */
diff --git a/os/ports/cosmic/STM8/chtypes.h b/os/ports/cosmic/STM8/chtypes.h
index 9c1749a96..48c9271c7 100644
--- a/os/ports/cosmic/STM8/chtypes.h
+++ b/os/ports/cosmic/STM8/chtypes.h
@@ -55,7 +55,8 @@ typedef uint8_t tslices_t; /**< Thread time slices counter. */
typedef uint8_t tprio_t; /**< Thread priority. */
typedef int16_t msg_t; /**< Inter-thread message. */
typedef int8_t eventid_t; /**< Event Id. */
-typedef uint8_t eventmask_t; /**< Events mask. */
+typedef uint8_t eventmask_t; /**< Event mask. */
+typedef uint8_t flagsmask_t; /**< Event flags. */
typedef uint16_t systime_t; /**< System time. */
typedef int8_t cnt_t; /**< Resources counter. */
diff --git a/readme.txt b/readme.txt
index c465f4acf..f508a8e61 100644
--- a/readme.txt
+++ b/readme.txt
@@ -85,6 +85,9 @@
*** 2.5.1 ***
- FIX: Fixed Data available event not generated in serial_usb driver (bug
3567992).
+- NEW: Improved the kernel events subsystem, now event sources can associate
+ source-specific flags to the listener, the flags can then be retrieved
+ using the new APIs chEvtGetAndClearFlags() and chEvtGetAndClearFlagsI().
- NEW: Added VLE support to the Power Architecture GCC port.
- NEW: Reorganized the Power Architecture GCC port along the lines of the
ARMCMx port, now it can support multiple core types.
diff --git a/test/testevt.c b/test/testevt.c
index 00a1f3fed..9ad9906d2 100644
--- a/test/testevt.c
+++ b/test/testevt.c
@@ -137,7 +137,7 @@ static void evt2_setup(void) {
static msg_t thread1(void *p) {
chThdSleepMilliseconds(50);
- chEvtSignalFlags((Thread *)p, 1);
+ chEvtSignal((Thread *)p, 1);
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-21 19:12:13 +0000