Data commit

Task/Text-processing-Max-licenses-in-use/C/text-processing-max-licenses-in-use-1.c

@@ -0,0 +1,60 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+
+#define INOUT_LEN 4
+#define TIME_LEN 20
+#define MAX_MAXOUT 1000
+
+char inout[INOUT_LEN];
+char time[TIME_LEN];
+uint jobnum;
+
+char maxtime[MAX_MAXOUT][TIME_LEN];
+
+int main(int argc, char **argv)
+{
+  FILE *in = NULL;
+  int l_out = 0, maxout=-1, maxcount=0;
+
+  if ( argc > 1 ) {
+    in = fopen(argv[1], "r");
+    if ( in == NULL ) {
+      fprintf(stderr, "cannot read %s\n", argv[1]);
+      exit(1);
+    }
+  } else {
+    in = stdin;
+  }
+
+  while( fscanf(in, "License %s @ %s for job %u\n", inout, time, &jobnum) != EOF ) {
+
+    if ( strcmp(inout, "OUT") == 0 )
+      l_out++;
+    else
+      l_out--;
+
+    if ( l_out > maxout ) {
+      maxout = l_out;
+      maxcount=0; maxtime[0][0] = '\0';
+    }
+    if ( l_out == maxout ) {
+      if ( maxcount < MAX_MAXOUT ) {
+    strncpy(maxtime[maxcount], time, TIME_LEN);
+    maxcount++;
+      } else {
+    fprintf(stderr, "increase MAX_MAXOUT (now it is %u)\n", MAX_MAXOUT);
+    exit(1);
+      }
+    }
+  }
+
+  printf("Maximum simultaneous license use is %d at the following times:\n", maxout);
+  for(l_out=0; l_out < maxcount; l_out++) {
+    printf("%s\n", maxtime[l_out]);
+  }
+
+  if ( in != stdin ) fclose(in);
+  exit(0);
+}

Task/Text-processing-Max-licenses-in-use/C/text-processing-max-licenses-in-use-2.c

@@ -0,0 +1,40 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <err.h>
+#include <string.h>
+
+int main()
+{
+    struct stat s;
+    int fd = open("mlijobs.txt", O_RDONLY);
+    int cnt, max_cnt, occur;
+    char *buf, *ptr;
+
+    if (fd == -1) err(1, "open");
+    fstat(fd, &s);
+    ptr = buf = mmap(0, s.st_size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
+
+    cnt = max_cnt = 0;
+    while(ptr - buf < s.st_size - 33) {
+        if (!strncmp(ptr, "License OUT", 11) && ++cnt >= max_cnt) {
+            if (cnt > max_cnt) {
+                max_cnt = cnt;
+                occur = 0;
+            }
+            /* can't sprintf time stamp: might overlap */
+            memmove(buf + 26 * occur, ptr + 14, 19);
+            sprintf(buf + 26 * occur + 19, "%6d\n", cnt);
+            occur++;
+        } else if (!strncmp(ptr, "License IN ", 11)) cnt --;
+
+        while (ptr < buf + s.st_size && *ptr++ != '\n');
+    }
+
+    printf(buf);
+    munmap(buf, s.st_size);
+    return close(fd);
+}

Task/Text-processing-Max-licenses-in-use/C/text-processing-max-licenses-in-use-3.c

@@ -0,0 +1,2 @@
+2008/10/03_08:39:34    99
+2008/10/03_08:40:40    99