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* signal.c (default_handler): func argument removed.
(trap_handler): support SYSTEM_DEFAULT. call default_handler internally. (sig_trap): don't call default_handler. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@12554 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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akr
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commit
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2 changed files with 78 additions and 59 deletions
10
ChangeLog
10
ChangeLog
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@ -1,3 +1,10 @@
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Fri Jun 15 22:33:55 2007 Tanaka Akira <akr@fsij.org>
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* signal.c (default_handler): func argument removed.
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(trap_handler): support SYSTEM_DEFAULT. call default_handler
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internally.
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(sig_trap): don't call default_handler.
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Fri Jun 15 22:33:29 2007 Nobuyoshi Nakada <nobu@ruby-lang.org>
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* common.mk (realclean): separate local and ext.
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@ -6,7 +13,8 @@ Fri Jun 15 22:33:29 2007 Nobuyoshi Nakada <nobu@ruby-lang.org>
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Fri Jun 15 20:50:02 2007 Tanaka Akira <akr@fsij.org>
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* keywords: enclose C code in declaration section by %{ and %}.
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* keywords: enclose C code in declaration section by %{ and %} to
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avoid extra semicolon after #ifdef RIPPER.
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Fri Jun 15 18:56:52 2007 Tanaka Akira <akr@fsij.org>
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125
signal.c
125
signal.c
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@ -634,13 +634,62 @@ struct trap_arg {
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VALUE cmd;
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};
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static sighandler_t
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default_handler(int sig)
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{
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sighandler_t func;
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switch (sig) {
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case SIGINT:
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#ifdef SIGHUP
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case SIGHUP:
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#endif
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#ifdef SIGQUIT
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case SIGQUIT:
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#endif
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#ifdef SIGTERM
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case SIGTERM:
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#endif
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#ifdef SIGALRM
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case SIGALRM:
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#endif
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#ifdef SIGUSR1
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case SIGUSR1:
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#endif
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#ifdef SIGUSR2
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case SIGUSR2:
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#endif
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func = sighandler;
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break;
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#ifdef SIGBUS
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case SIGBUS:
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func = sigbus;
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break;
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#endif
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#ifdef SIGSEGV
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case SIGSEGV:
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func = sigsegv;
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break;
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#endif
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#ifdef SIGPIPE
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case SIGPIPE:
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func = sigpipe;
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break;
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#endif
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default:
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func = SIG_DFL;
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break;
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}
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return func;
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}
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static RETSIGTYPE
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wrong_trap(int sig)
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{
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}
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static sighandler_t
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trap_handler(VALUE *cmd)
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trap_handler(VALUE *cmd, int sig)
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{
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sighandler_t func = wrong_trap;
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VALUE command;
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@ -654,22 +703,32 @@ trap_handler(VALUE *cmd)
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SafeStringValue(command); /* taint check */
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switch (RSTRING_LEN(command)) {
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case 0:
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func = SIG_IGN;
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goto sig_ign;
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break;
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case 14:
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if (strncmp(RSTRING_PTR(command), "SYSTEM_DEFAULT", 14) == 0) {
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func = SIG_DFL;
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*cmd = 0;
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}
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break;
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case 7:
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if (strncmp(RSTRING_PTR(command), "SIG_IGN", 7) == 0) {
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sig_ign:
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func = SIG_IGN;
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*cmd = 0;
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}
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else if (strncmp(RSTRING_PTR(command), "SIG_DFL", 7) == 0) {
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func = SIG_DFL;
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sig_dfl:
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func = default_handler(sig);
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*cmd = 0;
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}
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else if (strncmp(RSTRING_PTR(command), "DEFAULT", 7) == 0) {
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func = SIG_DFL;
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goto sig_dfl;
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}
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break;
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case 6:
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if (strncmp(RSTRING_PTR(command), "IGNORE", 6) == 0) {
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func = SIG_IGN;
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goto sig_ign;
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}
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break;
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case 4:
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@ -689,9 +748,6 @@ trap_handler(VALUE *cmd)
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func = sighandler;
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}
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}
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if (func == SIG_IGN || func == SIG_DFL) {
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*cmd = 0;
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}
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return func;
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}
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@ -734,53 +790,6 @@ trap_signm(VALUE vsig)
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return sig;
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}
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static sighandler_t
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default_handler(sighandler_t func, int sig)
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{
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if (func == SIG_DFL) {
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switch (sig) {
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case SIGINT:
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#ifdef SIGHUP
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case SIGHUP:
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#endif
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#ifdef SIGQUIT
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case SIGQUIT:
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#endif
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#ifdef SIGTERM
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case SIGTERM:
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#endif
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#ifdef SIGALRM
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case SIGALRM:
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#endif
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#ifdef SIGUSR1
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case SIGUSR1:
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#endif
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#ifdef SIGUSR2
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case SIGUSR2:
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#endif
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func = sighandler;
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break;
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#ifdef SIGBUS
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case SIGBUS:
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func = sigbus;
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break;
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#endif
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#ifdef SIGSEGV
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case SIGSEGV:
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func = sigsegv;
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break;
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#endif
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#ifdef SIGPIPE
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case SIGPIPE:
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func = sigpipe;
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break;
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#endif
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}
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}
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return func;
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}
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static VALUE
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trap(struct trap_arg *arg)
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{
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@ -851,10 +860,12 @@ rb_trap_restore_mask(void)
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* signal name. The command or block specifies code to be run when the
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* signal is raised. If the command is the string ``IGNORE'' or
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* ``SIG_IGN'', the signal will be ignored. If the command is
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* ``DEFAULT'' or ``SIG_DFL'', the operating system's default handler
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* ``DEFAULT'' or ``SIG_DFL'', the Ruby's default handler
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* will be invoked. If the command is ``EXIT'', the script will be
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* terminated by the signal. Otherwise, the given command or block
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* will be run.
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* If the command is ``SYSTEM_DEFAULT'', the operating system's default
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* handler will be invoked.
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* The special signal name ``EXIT'' or signal number zero will be
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* invoked just prior to program termination.
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* trap returns the previous handler for the given signal.
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@ -885,7 +896,7 @@ sig_trap(int argc, VALUE *argv)
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}
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else if (argc == 2) {
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arg.cmd = argv[1];
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arg.func = default_handler(trap_handler(&arg.cmd), arg.sig);
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arg.func = trap_handler(&arg.cmd, arg.sig);
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}
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if (OBJ_TAINTED(arg.cmd)) {
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