70 lines
1.2 KiB
C
70 lines
1.2 KiB
C
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/*
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* wait.c - test console interrupt signal handling with flag
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*/
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#include <saioctl.h>
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#include <arcs/errno.h>
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#include <arcs/io.h>
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#include <arcs/signal.h>
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#define AUTOBOOT_DELAY 5
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void intr_handler (void);
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static int intr_flag;
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int
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main(int argc, char **argv, char **envp)
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{
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int inittime = GetRelativeTime();
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SIGNALHANDLER old_handler;
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char inchar;
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ULONG nread;
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long rv;
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printf ("Testing wait mechanism.\n");
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printf ("Waiting for %d seconds.\n", AUTOBOOT_DELAY);
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intr_flag = 0;
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old_handler = Signal (SIGINT, (SIGNALHANDLER)intr_handler);
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while (inittime + AUTOBOOT_DELAY > GetRelativeTime()) {
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if (intr_flag) {
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printf ("Hit ^C.\n");
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rv = 1;
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goto timeout;
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}
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if (ESUCCESS == GetReadStatus(StandardIn)) {
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if (ESUCCESS == Read (StandardIn, &inchar, 1, &nread)) {
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switch (inchar) {
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case '\n':
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case '\r':
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printf ("Hit return.\n");
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rv = 0;
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goto timeout;
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case '\033':
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/*
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** user can break autoboot w/ ESC or ^C
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*/
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printf ("Hit escape.\n");
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rv = 1;
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goto timeout;
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}
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}
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}
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}
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timeout:
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Signal (SIGINT, old_handler);
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return (int)rv;
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}
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void
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intr_handler (void)
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{
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intr_flag = 1;
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}
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