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annotate Python/pyfpe.c @ 33940:dfd07b7be407 legacy-trunk

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SF bug 1061968: threads: segfault or Py_FatalError at exit PyGILState_Ensure(): The fix in 2.4a3 for bug 1010677 reintroduced thread shutdown race bug 225673. Repaired by (once again) ensuring the GIL is held whenever deleting a thread state. Alas, there's no useful test case for this shy bug. Four years ago, only Guido could provoke it, on his box, and today only Armin can provoke it on his box. I've never been able to provoke it (but not for lack of trying!). This is a critical fix for 2.3.5 too, since the fix for 1010677 got backported there already and so also reintroduced 225673. I don't intend to backport this fix. For whoever (if anyone) does, there are other thread fixes in 2.4 that need backporting too, and I bet they need to happen first for this patch to apply cleanly.
author Tim Peters <tim.peters@gmail.com>
date Mon, 08 Nov 2004 04:30:21 +0000
parents 2dea40e40d9d
children
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18835
2dea40e40d9d Patch #411138: Rename config.h to pyconfig.h. Closes bug #231774.
Martin v. Löwis <martin@v.loewis.de>
parents: 13658
diff changeset
1 #include "pyconfig.h"
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bda01a374762 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
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2 #include "pyfpe.h"
bda01a374762 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
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3 /*
bda01a374762 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
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4 * The signal handler for SIGFPE is actually declared in an external
bda01a374762 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
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5 * module fpectl, or as preferred by the user. These variable
bda01a374762 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
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6 * definitions are required in order to compile Python without
bda01a374762 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
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7 * getting missing externals, but to actually handle SIGFPE requires
bda01a374762 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
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8 * defining a handler and enabling generation of SIGFPE.
bda01a374762 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
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9 */
bda01a374762 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
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10
bda01a374762 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
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11 #ifdef WANT_SIGFPE_HANDLER
bda01a374762 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
parents:
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12 jmp_buf PyFPE_jbuf;
bda01a374762 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
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13 int PyFPE_counter = 0;
bda01a374762 Changes for Lee Busby's SIGFPE patch set.
Guido van Rossum <guido@python.org>
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14 #endif
9045
ad6bc2c5d353 Restructure the file so that it is never empty. No longer needs
Guido van Rossum <guido@python.org>
parents: 8822
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15
ad6bc2c5d353 Restructure the file so that it is never empty. No longer needs
Guido van Rossum <guido@python.org>
parents: 8822
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16 /* Have this outside the above #ifdef, since some picky ANSI compilers issue a
ad6bc2c5d353 Restructure the file so that it is never empty. No longer needs
Guido van Rossum <guido@python.org>
parents: 8822
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17 warning when compiling an empty file. */
ad6bc2c5d353 Restructure the file so that it is never empty. No longer needs
Guido van Rossum <guido@python.org>
parents: 8822
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18
ad6bc2c5d353 Restructure the file so that it is never empty. No longer needs
Guido van Rossum <guido@python.org>
parents: 8822
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19 double
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f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 9045
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20 PyFPE_dummy(void *dummy)
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ad6bc2c5d353 Restructure the file so that it is never empty. No longer needs
Guido van Rossum <guido@python.org>
parents: 8822
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21 {
ad6bc2c5d353 Restructure the file so that it is never empty. No longer needs
Guido van Rossum <guido@python.org>
parents: 8822
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22 return 1.0;
ad6bc2c5d353 Restructure the file so that it is never empty. No longer needs
Guido van Rossum <guido@python.org>
parents: 8822
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23 }