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3 Commits (5654fbffd588fb3362faec49b2da2e669e02fa8a)

Author SHA1 Message Date
Thiago Macieira abd2ffc149 QProcess/Unix: update the close-file-descriptors feature with a minimum 
So that one can pass a few extra file descriptors to the child while
still closing all the rest.

strace -f of this test showed on Linux:

[pid 117952] dup3(4, 0, 0)              = 0
[pid 117952] dup3(9, 1, 0)              = 1
[pid 117952] dup3(11, 2, 0)             = 2
[pid 117952] close(12)                  = 0
[pid 117952] dup2(100, 3)               = 3
[pid 117952] close_range(4, 2147483647, 0) = 0
[pid 117952] execve("testUnixProcessParameters/testUnixProcessParameters", ["testUnixProcessParameters/testUn"..., "file-descriptors2", "3", "100"], 0x561793dc87d0 /* 120 vars */ <unfinished ...>

Pick-to: 6.6
Change-Id: I3e3bfef633af4130a03afffd175e984bf50b558d
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
 2023-06-09 17:27:48 -07:00
Thiago Macieira 062b2ac71b QProcess/Unix: reset the signal block if ResetSignalHandlers requested 
This amends commit f9c87cfd44 to reset the
signal block mask too, not just the signal handlers. For this, SIGPIPE
is not treated specially.

Pick-to: 6.6
Change-Id: Ib5ce7a497e034ebabb2cfffd17627289614bf315
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
 2023-06-09 17:27:46 -07:00
Thiago Macieira f9c87cfd44 QProcess/Unix: add setUnixProcessParameters() 
This commit adds those three flags that are either frequent enough or
difficult to do: close all file descriptors above stderr and reset the
signal handlers. Setting SIGPIPE to be ignored isn't critical, but is
required when the ResetSignalHandlers flag is used, as this is run
after the user child process modifier.

[ChangeLog][QtCore][QProcess] Added setUnixProcessParameters() function
that can be used to modify certain settings of the child process,
without the need to provide a callback using setChildProcessModifier().

Change-Id: Icfe44ecf285a480fafe4fffd174d0d1d63840403
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
 2023-05-22 10:43:50 -07:00