b21f1eaeae
KWSys: Restore SIGSTOP/SIGKILL to end process tree
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On UNIX systems we kill a tree of processes by performing a DFS walk of
the tree. We send SIGSTOP to each process encountered, recursively
handle its children, and then send SIGKILL.
We once used the above approach in the past, but it was removed by the
commit "Do not send both SIGSTOP and SIGKILL when killing a process".
The commit was meant to work-around an OS X 10.3 bug in which the child
would not always honor SIGKILL after SIGSTOP. At the time we wrongly
assumed that the process tree remains intact after SIGKILL and before
the child is reaped. In fact the grandchildren may be re-parented to
ppid=1 even before the child is reaped, which causes the DFS walk to
miss them.
2009-11-30 13:14:02 -05:00
5e2851f855
fix two more icpc warnings, ok by Brad (float compared for equality, unused variable)
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Alex
2009-10-19 12:57:36 -04:00
de955e4b6d
Convert KWSys to OSI-approved BSD License
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This converts the KWSys license to a pure 3-clause OSI-approved BSD
License. We drop the previous license clause requiring modified
versions to be plainly marked. We also update the KWSys copyright to
cover the full development time range.
2009-09-28 11:37:35 -04:00
18e639d48a
ENH: Provide unix-sytle command line parsing
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Add System_Parse_CommandForUnix to the KWSys System interface as a
utility to parse a unix-style command line. Move the existing
implementation out of ProcessUNIX. Add a flags argument reserved for
future use in providing additional behavior.
2009-07-13 16:22:14 -04:00
219626a2be
COMP: Do not compile VMS-specific code on non-VMS
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This helps avoid fixing VMS-specific code for non-VMS compilers where it
isn't needed anyway.
2009-06-12 15:44:50 -04:00
17daa9398a
COMP:Fixed warning with gcc 4.3.3: passing argument 1 of kwsysProcessSetVMSFeature discards qualifiers from pointer target type.
2009-06-12 13:33:35 -04:00
312ca9670f
ENH: Teach KWSys Process basic VMS support
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This achieves basic process execution on OpenVMS. We use work-arounds
for different fork()/exec() behavior and a lack of select().
VMS emulates fork/exec using setjmp/longjmp to evaluate the child and
parent return cases from fork. Therefore both must be invoked from the
same function.
Since select() works only for sockets we use the BeOS-style polling
implementation. However, non-blocking reads on empty pipes cannot be
distinguished easily from the last read on a closed pipe. Therefore we
identify end of data by an empty read after the child terminates.
2009-06-10 11:48:34 -04:00
1eec4fe6ad
BUG: Fix non-select process impl without timeout
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This avoids use of an uninitialized value in the KWSys ProcessUNIX
polling implementation when no timeout is given.
2009-06-10 11:46:21 -04:00
7fc99c94d4
ENH: check in almost building VMS stuff with VMSBuild directory since the bootstrap script will not work on VMS
2009-04-23 11:09:47 -04:00
257937f2bd
COMP:Try to fix compile error with qnx gcc.
2009-03-16 17:38:17 -04:00
d0b32b42a1
COMP:Fixed gcc 4.3.2 warning with -O1 and above: ignoring return value of read'), declared with attribute warn_unused_result
2009-03-16 17:13:14 -04:00
7b9b56d80e
COMP:Fixed warnings.
2009-03-16 15:02:25 -04:00
ef36d72c89
COMP:Fixed warnings.
2008-12-15 17:19:26 -05:00
67dc176ffa
ENH: a few more haiku fixes, stop the debugger from coming up for tests
2008-09-22 14:05:13 -04:00
64fc597de2
ENH: add initial support for HAIKU OS from bug# 7425
2008-09-15 17:53:28 -04:00
07665de038
BUG: Handle case when select() lies
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According to "man select" on Linux it is possible that select() lies
about data being ready on a pipe in some subtle cases. We deal with
this by switching to non-blocking i/o and checking for EAGAIN. See
issue #7180 .
2008-08-20 09:57:09 -04:00
7499bb250d
ENH: all ctype function have the same issue: char can be signed or unsigned, since isspace only deal with >=0 value (except EOF) one has to first cast it to unsigned char
2008-05-13 05:18:51 -04:00
614b1ab358
COMP: warning, isprint and isspace take int args.
2008-05-12 12:01:09 -04:00
f410daffec
STYLE: minor comments
2008-04-02 08:36:51 -04:00
1c2ffbb5bc
BUG: Fix hang in Process_Kill on OS X caused by an OS bug in which a pipe read end cannot be closed if the pipe write end is open, the pipe is full, and another process is blocking waiting to write. Work around the problem by killing the children before closing the pipes.
2008-01-10 18:32:38 -05:00
9dec9a0c3b
COMP: Fix for platforms that do not have siginfo on their signal handlers.
2007-06-27 11:39:16 -04:00
01c7db07c3
BUG: Do not send both SIGSTOP and SIGKILL when killing a process. The SIGSTOP seems to be able to block the SIGKILL occasionally. Also the SIGKILL is sufficient since the process table entry will still exist until it is reaped with waitpid.
2007-05-16 13:10:45 -04:00
aa4d7847ee
COMP: Fix code-not-reached warnings for SunCC.
2007-05-03 13:03:13 -04:00
6b7bf34341
COMP: remove warning
2006-12-05 09:02:32 -05:00
1513773310
ENH: fix build error on IRIX
2006-12-05 08:39:22 -05:00
de8ffcaef4
ENH: Changes based on patch from Ryan C. Gordon to enable process execution on BeOS. There seems to be no way to implement it without polling (or threads).
2006-12-04 14:42:47 -05:00
40adb2ce03
ENH: Adding tests KWSYS_C_HAS_PTRDIFF_T and KWSYS_C_HAS_SSIZE_T to help ProcessUNIX.c build everywhere without warnings.
2006-10-04 17:27:17 -04:00
48ee381e6b
BUG: Need to initialize to not use native pipes.
2006-10-03 10:26:32 -04:00
6eef6638a5
ENH: Added Process_SetPipeNative method to allow user code to override the pipes connected to the child pipeline.
2006-10-03 09:10:03 -04:00
9b2b2b5f1b
COMP: Use SA_RESTART only if it is defined for the current platform. This partially addresses bug#3556.
2006-08-01 14:28:03 -04:00
6438bec4c9
ENH: Added Option_Verbatim to run whole command lines directly.
2006-06-15 14:40:42 -04:00
9b74e597be
BUG: Do not leak global table of processes.
2006-05-24 10:13:18 -04:00
35334d01cd
ENH: Re-enabling SIGCHLD handling implementation with a fix for Cygwin.
2006-05-23 11:48:15 -04:00
29b75dda97
BUG: Reverting previous change until it can be fixed on Cygwin.
2006-05-22 15:11:42 -04:00
0d594a4538
ENH: Implemented handling of SIGCHLD to detect the termination of immediate children. This allows grandchildren to remain running after the children exit.
2006-05-21 10:26:28 -04:00
3dd70af5a0
ENH: Enabling process tree killing on Cygwin.
2006-05-20 18:50:27 -04:00
bde71e9668
ENH: Enabled process tree killing on AIX.
2006-03-08 13:06:46 -05:00
6fb7bac013
ENH: Enabled process tree killing on the SGI.
2006-03-08 12:42:59 -05:00
95f86d5d6f
ENH: Enabled process tree killing for FreeBSD and Sun.
2006-03-08 12:36:14 -05:00
17d79233ff
ENH: Enabled process tree killing on HP-UX.
2006-03-08 12:12:37 -05:00
c31c18bb9c
BUG: Do not leak ps FILE when the process starts but reading the header fails.
2006-03-08 11:57:41 -05:00
3c39accee9
ENH: Added implementation of process tree killing that runs "ps" to traverse the tree.
2006-03-08 11:38:51 -05:00
8489a94101
BUG: When more than one command is given and one of them fails to start and the rest are killed, do not forget to reap the killed children.
2005-12-31 12:59:31 -05:00
e3876623f6
STYLE: Documented reference to "man select_tut".
2005-11-16 11:39:43 -05:00
9fd4560ba2
BUG: Fixed polling capability of WaitForData.
2005-06-17 13:57:27 -04:00
26f82b064c
ENH: Removing previous debug code.
2005-05-16 13:42:23 -04:00
b45071cc60
ENH: Adding debugging code for freebsd.
2005-05-13 14:44:20 -04:00
a4aefb4faa
BUG: struct timeval uses unsigned types on at least one platform (QNX). Alot of the time logic assumes a signed type. Switch to using a signed representation that is converted to the native representation only for system calls.
2005-05-10 16:36:49 -04:00
3336b74c01
COMP: Added initializer to avoid warning. It is not really needed, though.
2005-05-05 09:05:15 -04:00
8567e7d0bc
BUG: Do not close stdout/stderr pipes in parent if they are shared.
2005-04-21 16:05:09 -04:00
Brad King
Alexander Neundorf
Francois Bertel
Bill Hoffman
Mathieu Malaterre
Bill Lorensen