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Commita907872

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Ported patches to PostgreSQL 11
1 parentec4125e commita907872

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3 files changed

+138
-116
lines changed

3 files changed

+138
-116
lines changed

‎README.md‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -20,6 +20,7 @@ Correspondence branch names to PostgreSQL version numbers:
2020
-_PGPRO9_6_ --- PostgreSQL 9.6 and PostgresPro 9.6
2121
-_PGPRO10_ --- PostgresPro 10
2222
-_PG10_ --- PostgreSQL 10
23+
-_PG11_ --- PostgreSQL 11
2324
-_master_ --- development version for the newest version PostgreSQL
2425

2526
Then execute this in the module's directory:

‎custom_signals.patch‎

Lines changed: 18 additions & 58 deletions
Original file line numberDiff line numberDiff line change
@@ -1,16 +1,8 @@
11
diff --git a/src/backend/storage/ipc/procsignal.c b/src/backend/storage/ipc/procsignal.c
2-
indexb9302ac..95f7da2 100644
2+
indexb0dd7d1..1f14b0d 100644
33
--- a/src/backend/storage/ipc/procsignal.c
44
+++ b/src/backend/storage/ipc/procsignal.c
5-
@@ -27,6 +27,7 @@
6-
#include "storage/shmem.h"
7-
#include "storage/sinval.h"
8-
#include "tcop/tcopprot.h"
9-
+#include "utils/memutils.h"
10-
11-
12-
/*
13-
@@ -60,12 +61,17 @@ typedef struct
5+
@@ -60,12 +60,17 @@ typedef struct
146
*/
157
#define NumProcSignalSlots(MaxBackends + NUM_AUXPROCTYPES)
168

@@ -28,12 +20,12 @@ index b9302ac..95f7da2 100644
2820
/*
2921
* ProcSignalShmemSize
3022
*Compute space needed for procsignal's shared memory
31-
@@ -166,6 +172,57 @@ CleanupProcSignalState(int status, Datum arg)
23+
@@ -166,6 +171,57 @@ CleanupProcSignalState(int status, Datum arg)
3224
}
3325

3426
/*
3527
+ * RegisterCustomProcSignalHandler
36-
+ * Assign specific handlerfor custom process signal with new ProcSignalReason key.
28+
+ * Assign specific handlerof custom process signal with new ProcSignalReason key.
3729
+ * Return INVALID_PROCSIGNAL if all custom signals have been assigned.
3830
+ */
3931
+ProcSignalReason
@@ -62,7 +54,7 @@ index b9302ac..95f7da2 100644
6254
+{
6355
+ProcSignalHandler_type old;
6456
+
65-
+AssertArg(reason >= PROCSIG_CUSTOM_1 && reason <= PROCSIG_CUSTOM_N);
57+
+Assert(reason >= PROCSIG_CUSTOM_1 && reason <= PROCSIG_CUSTOM_N);
6658
+
6759
+old = CustomHandlers[reason - PROCSIG_CUSTOM_1];
6860
+CustomHandlers[reason - PROCSIG_CUSTOM_1] = handler;
@@ -77,7 +69,7 @@ index b9302ac..95f7da2 100644
7769
+ProcSignalHandler_type
7870
+GetCustomProcSignalHandler(ProcSignalReason reason)
7971
+{
80-
+AssertArg(reason >= PROCSIG_CUSTOM_1 && reason <= PROCSIG_CUSTOM_N);
72+
+Assert(reason >= PROCSIG_CUSTOM_1 && reason <= PROCSIG_CUSTOM_N);
8173
+
8274
+return CustomHandlers[reason - PROCSIG_CUSTOM_1];
8375
+}
@@ -86,7 +78,7 @@ index b9302ac..95f7da2 100644
8678
* SendProcSignal
8779
*Send a signal to a Postgres process
8880
*
89-
@@ -260,7 +317,8 @@ CheckProcSignal(ProcSignalReason reason)
81+
@@ -260,7 +316,8 @@ CheckProcSignal(ProcSignalReason reason)
9082
void
9183
procsignal_sigusr1_handler(SIGNAL_ARGS)
9284
{
@@ -96,7 +88,7 @@ index b9302ac..95f7da2 100644
9688

9789
if (CheckProcSignal(PROCSIG_CATCHUP_INTERRUPT))
9890
HandleCatchupInterrupt();
99-
@@ -292,9 +350,87 @@ procsignal_sigusr1_handler(SIGNAL_ARGS)
91+
@@ -292,9 +349,55 @@ procsignal_sigusr1_handler(SIGNAL_ARGS)
10092
if (CheckProcSignal(PROCSIG_RECOVERY_CONFLICT_BUFFERPIN))
10193
RecoveryConflictInterrupt(PROCSIG_RECOVERY_CONFLICT_BUFFERPIN);
10294

@@ -119,7 +111,7 @@ index b9302ac..95f7da2 100644
119111
+{
120112
+intsave_errno = errno;
121113
+
122-
+AssertArg(reason >= PROCSIG_CUSTOM_1 && reason <= PROCSIG_CUSTOM_N);
114+
+Assert(reason >= PROCSIG_CUSTOM_1 && reason <= PROCSIG_CUSTOM_N);
123115
+
124116
+/* set interrupt flags */
125117
+InterruptPending = true;
@@ -140,31 +132,6 @@ index b9302ac..95f7da2 100644
140132
+CheckAndHandleCustomSignals(void)
141133
+{
142134
+int i;
143-
+MemoryContext oldcontext;
144-
+
145-
+static MemoryContext hcs_context = NULL;
146-
+
147-
+/*
148-
+ * This is invoked from ProcessInterrupts(), and since some of the
149-
+ * functions it calls contain CHECK_FOR_INTERRUPTS(), there is a potential
150-
+ * for recursive calls if more signals are received while this runs, so
151-
+ * let's block interrupts until done.
152-
+ */
153-
+HOLD_INTERRUPTS();
154-
+
155-
+/*
156-
+ * Moreover, CurrentMemoryContext might be pointing almost anywhere. We
157-
+ * don't want to risk leaking data into long-lived contexts, so let's do
158-
+ * our work here in a private context that we can reset on each use.
159-
+ */
160-
+if (hcs_context == NULL)/* first time through? */
161-
+hcs_context = AllocSetContextCreate(TopMemoryContext,
162-
+"HandleCustomSignals",
163-
+ALLOCSET_DEFAULT_SIZES);
164-
+else
165-
+MemoryContextReset(hcs_context);
166-
+
167-
+oldcontext = MemoryContextSwitchTo(hcs_context);
168135
+
169136
+for (i = 0; i < NUM_CUSTOM_PROCSIGNALS; i++)
170137
+if (CustomSignalPendings[i])
@@ -176,19 +143,12 @@ index b9302ac..95f7da2 100644
176143
+if (handler)
177144
+handler();
178145
+}
179-
+
180-
+MemoryContextSwitchTo(oldcontext);
181-
+
182-
+/* Might as well clear the context on our way out */
183-
+MemoryContextReset(hcs_context);
184-
+
185-
+RESUME_INTERRUPTS();
186146
+}
187147
diff --git a/src/backend/tcop/postgres.c b/src/backend/tcop/postgres.c
188-
index63a1994..0dfad33 100644
148+
index7a9ada2..e9698e1 100644
189149
--- a/src/backend/tcop/postgres.c
190150
+++ b/src/backend/tcop/postgres.c
191-
@@ -3012,6 +3012,8 @@ ProcessInterrupts(void)
151+
@@ -3053,6 +3053,8 @@ ProcessInterrupts(void)
192152

193153
if (ParallelMessagePending)
194154
HandleParallelMessages();
@@ -198,19 +158,19 @@ index 63a1994..0dfad33 100644
198158

199159

200160
diff --git a/src/include/storage/procsignal.h b/src/include/storage/procsignal.h
201-
index20bb05b..9b16eb3 100644
161+
index6db0d69..ceadc09 100644
202162
--- a/src/include/storage/procsignal.h
203163
+++ b/src/include/storage/procsignal.h
204-
@@ -17,6 +17,8 @@
205-
#include "storage/backendid.h"
164+
@@ -16,7 +16,7 @@
206165

166+
#include "storage/backendid.h"
207167

168+
-
208169
+#define NUM_CUSTOM_PROCSIGNALS 64
209-
+
210170
/*
211171
* Reasons for signalling a Postgres child process (a backend or an auxiliary
212172
* process, like checkpointer). We can cope with concurrent signals for different
213-
@@ -29,6 +31,8 @@
173+
@@ -29,6 +29,8 @@
214174
*/
215175
typedef enum
216176
{
@@ -219,7 +179,7 @@ index 20bb05b..9b16eb3 100644
219179
PROCSIG_CATCHUP_INTERRUPT,/* sinval catchup interrupt */
220180
PROCSIG_NOTIFY_INTERRUPT,/* listen/notify interrupt */
221181
PROCSIG_PARALLEL_MESSAGE,/* message from cooperating parallel backend */
222-
@@ -42,9 +46,20 @@ typedef enum
182+
@@ -42,9 +44,20 @@ typedef enum
223183
PROCSIG_RECOVERY_CONFLICT_BUFFERPIN,
224184
PROCSIG_RECOVERY_CONFLICT_STARTUP_DEADLOCK,
225185

@@ -240,7 +200,7 @@ index 20bb05b..9b16eb3 100644
240200
/*
241201
* prototypes for functions in procsignal.c
242202
*/
243-
@@ -52,9 +67,15 @@ extern Size ProcSignalShmemSize(void);
203+
@@ -52,9 +65,15 @@ extern Size ProcSignalShmemSize(void);
244204
extern void ProcSignalShmemInit(void);
245205

246206
extern void ProcSignalInit(int pss_idx);

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