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49018bf577
Previsouly, the following commands hangs: mintty -e timeout 1 dash -c 'yes aaaaaaaaaaaaaaaaaaaaaaaaa | cat' The mechanism is as follows. When the child process (timeout) is terminated, mintty seems to stop reading pty master even if yes or cat still alive. If the the pipe used to transfer output from pty slave to pty master is full due to lack of master reader, WriteFile() to the pipe is blocked. WriteFile() cannot be canceled by cygwin signal, therefore, pty slave hangs. This patch avoids hanging by checking pipe space before calling WriteFile() and prevents writing data more than space. Addresses: https://cygwin.com/pipermail/cygwin/2024-June/256178.html Reported-by: jojelino <jojelino@gmail.com> Signed-off-by: Takashi Yano <takashi.yano@nifty.ne.jp>
22 lines
883 B
Groff
22 lines
883 B
Groff
Fixes:
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- Fix regression in 3.5.3 which fails to open files for stat(2) if the
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file is opened exclusively by another process.
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Addresses: https://cygwin.com/pipermail/cygwin/2024-April/255811.html
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- Fix regression introduced in 3.5.0 when reading surrogate pairs (i.e.,
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unicode chars >= 0x10000) from the DOS command line. Addresses:
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https://cygwin.com/pipermail/cygwin/2024-April/255807.html
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- Fix regression of pthread::once() introduced in 3.5.0 (i.e., the race
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issue regarding destroying mutex).
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Addresses: https://cygwin.com/pipermail/cygwin/2024-May/255987.html
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- Fix a problem that ldd command against cygwin DLLs sometimes hangs.
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Addresses: https://cygwin.com/pipermail/cygwin/2024-May/255991.html
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- Fix a problem that pty slave hangs on writing when pty master stops
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to read.
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Addresses: https://cygwin.com/pipermail/cygwin/2024-June/256178.html
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