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#include <signal.h> |
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#include <sys/stat.h> |
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#include <sys/types.h> |
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#include "platform.h" |
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#ifndef NON_POSIX /* XXX need abstraction for process management */ |
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#include <sys/wait.h> |
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#endif |
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#include "platform.h" |
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#include "rtprocess.h" /* getpid() */ |
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#include "standard.h" |
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#include "random.h" |
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static int persistfd = -1; /* persist file descriptor */ |
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static char inpname[TEMPLEN+1], outpname[TEMPLEN+1], errname[TEMPLEN+1]; |
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|
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typedef void (sighandler_t)(int); |
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static sighandler_t sig_io; |
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static sighandler_t sig_alrm; |
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typedef void (rsighandler_t)(int); |
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static rsighandler_t sig_io; |
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static rsighandler_t sig_alrm; |
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extern void |
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void |
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pfdetach(void) /* release persist (and header) resources */ |
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{ |
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if (persistfd >= 0) |
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} |
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extern void |
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void |
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pfclean(void) /* clean up persist files */ |
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{ |
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if (persistfd >= 0) |
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} |
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extern void |
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void |
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pflock( /* place or release exclusive lock on file */ |
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int lf |
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) |
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} |
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extern void |
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void |
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persistfile( /* open persist file and lock it */ |
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char *pfn |
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) |
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static void sig_alrm(int i) { quit(0); } |
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extern void |
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void |
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pfhold(void) /* holding pattern for idle rendering process */ |
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{ |
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< |
sighandler_t *oldalrm; |
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> |
rsighandler_t *oldalrm; |
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char buf[512]; |
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< |
register int n; |
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int n; |
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/* close input and output descriptors */ |
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close(0); |
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close(1); |
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signal(SIGIO, SIG_DFL); |
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pflock(1); /* grab persist file back */ |
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/* someone wants us; reopen stdin and stdout */ |
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/* |
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if (freopen(inpname, "r", stdin) == NULL) |
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goto openerr; |
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if (freopen(outpname, "w", stdout) == NULL) |
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goto openerr; |
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*/ |
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close(0); |
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if (open(inpname, O_RDONLY) != 0) |
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error(INTERNAL, "unexpected stdin file number"); |
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return; |
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createrr: |
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error(SYSTEM, "cannot create named pipes in pfhold"); |
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openerr: |
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error(SYSTEM, "cannot open named pipes in pfhold"); |
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} |
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extern void |
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void |
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io_process(void) /* just act as go-between for actual process */ |
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{ |
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register char *cp; |
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register int nr, n; |
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> |
char *cp; |
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int nr, n; |
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char buf[BUFSIZ], *pfin, *pfout, *pferr; |
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int pid, nfds; |
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int fdout, fderr = -1; |
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if (!strncmp(cp, progname, n) && |
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cp[n++] == ':' && |
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cp[n++] == ' ') { |
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< |
register struct erract *ep; |
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> |
struct erract *ep; |
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for (ep = erract; ep < erract+NERRS; |
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ep++) |
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if (ep->pre[0] && |
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#else |
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|
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< |
extern void pfclean(void) {} |
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> |
void pfclean(void) {} |
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#endif |