Macintosh-SW/mpw-shell
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use atomic variable for the control-c flag.

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This commit is contained in:
Kelvin Sherlock 2016-02-22 12:03:58 -05:00
parent fafb08b90a
commit 6ff7b50a7d
2 changed files with 6 additions and 4 deletions
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3
command.cpp
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@ -18,8 +18,9 @@
#include <unistd.h>
#include <sys/wait.h>
#include <sysexits.h>
#include <atomic>
extern volatile int control_c;
extern std::atomic<int> control_c;
namespace fs = filesystem;
extern fs::path mpw_path();

7
mpw-shell.cpp
View File

@ -29,6 +29,7 @@
#include <pwd.h>
#include <sysexits.h>
#include <paths.h>
#include <atomic>
namespace fs = filesystem;
@ -168,13 +169,13 @@ int read_make(phase1 &p1, phase2 &p2, Environment &env, const std::vector<std::s
return env.status();
}
volatile int control_c = 0;
std::atomic<int> control_c{0};
void control_c_handler(int signal, siginfo_t *sinfo, void *context) {
// libedit gobbles up the first control-C and doesn't return until the second.
// GNU's readline may return no the first.
// GNU's readline may return on the first.
if (control_c > 3) abort();
control_c++;
++control_c;
//fprintf(stderr, "interrupt!\n");
}