diff options
Diffstat (limited to 'csci4061/110920_breakout/zip')
-rw-r--r-- | csci4061/110920_breakout/zip/sol1.c | 37 | ||||
-rw-r--r-- | csci4061/110920_breakout/zip/sol2.c | 52 |
2 files changed, 89 insertions, 0 deletions
diff --git a/csci4061/110920_breakout/zip/sol1.c b/csci4061/110920_breakout/zip/sol1.c new file mode 100644 index 0000000..ca60c50 --- /dev/null +++ b/csci4061/110920_breakout/zip/sol1.c @@ -0,0 +1,37 @@ +/* +* Recitation Section Number: 9 +* Breakout Number: +* Audrey Hebert (heber169) +* Qiyu Tian (tian0068) +* Mouhari Mouhamed (mouha003) +* Matt Strapp (strap012) +*/ + +#include <stdio.h> +#include <signal.h> +#include <unistd.h> +#include <time.h> + +void infinitePrint() { + + static int count = 0; + printf("%ld: Count = %d\n", time(NULL), ++count); + sleep(1); +} + +int main() { + + // ------------------sol1.c----------------- + // initialize new sigset - sigset_t, sigemptyset + sigset_t sigset; + sigemptyset(&sigset); + // add SIGINT to sigset - sigaddset + sigaddset(&sigset, SIGINT); + // block SIGINT - sigprocmask + sigprocmask(SIG_BLOCK, &sigset, NULL); + // Do not modify the while loop and infinitePrint() + // ----------------------------------------- + + /* Print infinitely. */ + while (1) infinitePrint(); +}
\ No newline at end of file diff --git a/csci4061/110920_breakout/zip/sol2.c b/csci4061/110920_breakout/zip/sol2.c new file mode 100644 index 0000000..04dad3e --- /dev/null +++ b/csci4061/110920_breakout/zip/sol2.c @@ -0,0 +1,52 @@ +/* +* Recitation Section Number: 9 +* Breakout Number: 6 +* Audrey Hebert (heber169) +* Qiyu Tian (tian0068) +* Mouhari Mouhamed (mouha003) +* Matt Strapp (strap012) +*/ + +#include <stdio.h> +#include <signal.h> +#include <unistd.h> +#include <time.h> + +// Remember the usage of sig_atomic_t in the recitation example +static volatile sig_atomic_t doneflag = 0; + +static void setdoneflag(int signo) { + doneflag = doneflag ^ 1; +} + +void infinitePrint() { + + static int count = 0; + printf("%ld: Count = %d\n", time(NULL), ++count); + sleep(1); +} + +int main() { + + // ------------------sol2.c----------------- + // setup signal handler - sigaction struct, sigemptyset, + struct sigaction act; + sigset_t sigset; + // specify action associated with SIGNT - sigaction() + act.sa_handler = setdoneflag; /* set up signal handler */ + act.sa_flags = 0; + if ((sigemptyset(&act.sa_mask) == -1) || + (sigaction(SIGINT, &act, NULL) == -1)) + { + perror("Failed to set SIGINT handler"); + return 1; + } + // You are free to modify the while loop but not the infinitePrint() + // ----------------------------------------- + + /* Print infinitely. */ + while (1) { + if (!doneflag) + infinitePrint(); + } +}
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