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Revert "Consistently test for in-use shared memory."

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This reverts commits 2f932f71d9,
16ee6eaf80 and
6f0e190056.  The buildfarm has revealed
several bugs.  Back-patch like the original commits.

Discussion: https://postgr.es/m/20190404145319.GA1720877@rfd.leadboat.com
This commit is contained in:
Noah Misch
2019-04-05 00:00:52 -07:00
parent 794c543b17
commit 82150a05be
11 changed files with 179 additions and 495 deletions
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12
src/backend/postmaster/postmaster.c
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@@ -2604,7 +2604,7 @@ reset_shared(int port)
* determine IPC keys. This helps ensure that we will clean up dead IPC
* objects if the postmaster crashes and is restarted.
*/
CreateSharedMemoryAndSemaphores(port);
CreateSharedMemoryAndSemaphores(false, port);
}
@@ -4945,7 +4945,7 @@ SubPostmasterMain(int argc, char *argv[])
InitProcess();
/* Attach process to shared data structures */
CreateSharedMemoryAndSemaphores(0);
CreateSharedMemoryAndSemaphores(false, 0);
/* And run the backend */
BackendRun(&port); /* does not return */
@@ -4959,7 +4959,7 @@ SubPostmasterMain(int argc, char *argv[])
InitAuxiliaryProcess();
/* Attach process to shared data structures */
CreateSharedMemoryAndSemaphores(0);
CreateSharedMemoryAndSemaphores(false, 0);
AuxiliaryProcessMain(argc - 2, argv + 2); /* does not return */
}
@@ -4972,7 +4972,7 @@ SubPostmasterMain(int argc, char *argv[])
InitProcess();
/* Attach process to shared data structures */
CreateSharedMemoryAndSemaphores(0);
CreateSharedMemoryAndSemaphores(false, 0);
AutoVacLauncherMain(argc - 2, argv + 2); /* does not return */
}
@@ -4985,7 +4985,7 @@ SubPostmasterMain(int argc, char *argv[])
InitProcess();
/* Attach process to shared data structures */
CreateSharedMemoryAndSemaphores(0);
CreateSharedMemoryAndSemaphores(false, 0);
AutoVacWorkerMain(argc - 2, argv + 2); /* does not return */
}
@@ -5003,7 +5003,7 @@ SubPostmasterMain(int argc, char *argv[])
InitProcess();
/* Attach process to shared data structures */
CreateSharedMemoryAndSemaphores(0);
CreateSharedMemoryAndSemaphores(false, 0);
/* Fetch MyBgworkerEntry from shared memory */
shmem_slot = atoi(argv[1] + 15);