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patch 8.2.0952: no simple way to interrupt Vim

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Problem:    No simple way to interrupt Vim.
Solution:   Add the SigUSR1 autocommand, triggered by SIGUSR1. (Jacob Hayes,
            closes #1718)
This commit is contained in:
Bram Moolenaar
2020-06-10 20:56:58 +02:00
parent 6ba24d8763
commit be5ee8686a
8 changed files with 67 additions and 6 deletions
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27
src/os_unix.c
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@@ -164,6 +164,9 @@ static RETSIGTYPE sig_winch SIGPROTOARG;
#if defined(SIGINT)
static RETSIGTYPE catch_sigint SIGPROTOARG;
#endif
#if defined(SIGUSR1)
static RETSIGTYPE catch_sigusr1 SIGPROTOARG;
#endif
#if defined(SIGPWR)
static RETSIGTYPE catch_sigpwr SIGPROTOARG;
#endif
@@ -297,7 +300,7 @@ static struct signalinfo
{SIGXFSZ, "XFSZ", TRUE},
#endif
#ifdef SIGUSR1
{SIGUSR1, "USR1", TRUE},
{SIGUSR1, "USR1", FALSE},
#endif
#if defined(SIGUSR2) && !defined(FEAT_SYSMOUSE)
// Used for sysmouse handling
@@ -837,6 +840,17 @@ catch_sigint SIGDEFARG(sigarg)
}
#endif
#if defined(SIGUSR1)
static RETSIGTYPE
catch_sigusr1 SIGDEFARG(sigarg)
{
// this is not required on all systems, but it doesn't hurt anybody
signal(SIGUSR1, (RETSIGTYPE (*)())catch_sigusr1);
got_sigusr1 = TRUE;
SIGRETURN;
}
#endif
#if defined(SIGPWR)
static RETSIGTYPE
catch_sigpwr SIGDEFARG(sigarg)
@@ -1323,10 +1337,10 @@ set_signals(void)
#if defined(SIGCONT)
signal(SIGCONT, sigcont_handler);
#endif
#ifdef SIGPIPE
/*
* We want to ignore breaking of PIPEs.
*/
#ifdef SIGPIPE
signal(SIGPIPE, SIG_IGN);
#endif
@@ -1334,6 +1348,13 @@ set_signals(void)
catch_int_signal();
#endif
#ifdef SIGUSR1
/*
* Call user's handler on SIGUSR1
*/
signal(SIGUSR1, (RETSIGTYPE (*)())catch_sigusr1);
#endif
/*
* Ignore alarm signals (Perl's alarm() generates it).
*/
@@ -1341,11 +1362,11 @@ set_signals(void)
signal(SIGALRM, SIG_IGN);
#endif
#ifdef SIGPWR
/*
* Catch SIGPWR (power failure?) to preserve the swap files, so that no
* work will be lost.
*/
#ifdef SIGPWR
signal(SIGPWR, (RETSIGTYPE (*)())catch_sigpwr);
#endif