Cygwin: process.execPath fix

src/platform_cygwin.cc

@@ -0,0 +1,99 @@
+#include "node.h"
+#include "platform.h"
+
+#include <sys/param.h> // for MAXPATHLEN
+#include <unistd.h> // getpagesize
+
+
+namespace node {
+
+static char buf[MAXPATHLEN + 1];
+
+int OS::GetMemory(size_t *rss, size_t *vsize) {
+  FILE *f = fopen("/proc/self/stat", "r");
+  if (!f) return -1;
+
+  int itmp;
+  char ctmp;
+  size_t page_size = getpagesize();
+
+  /* PID */
+  if (fscanf(f, "%d ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* Exec file */
+  if (fscanf (f, "%s ", buf) == 0) goto error; /* coverity[secure_coding] */
+  /* State */
+  if (fscanf (f, "%c ", &ctmp) == 0) goto error; /* coverity[secure_coding] */
+  /* Parent process */
+  if (fscanf (f, "%d ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* Process group */
+  if (fscanf (f, "%d ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* Session id */
+  if (fscanf (f, "%d ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* TTY */
+  if (fscanf (f, "%d ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* TTY owner process group */
+  if (fscanf (f, "%d ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* Flags */
+  if (fscanf (f, "%u ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* Minor faults (no memory page) */
+  if (fscanf (f, "%u ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* Minor faults, children */
+  if (fscanf (f, "%u ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* Major faults (memory page faults) */
+  if (fscanf (f, "%u ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* Major faults, children */
+  if (fscanf (f, "%u ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* utime */
+  if (fscanf (f, "%d ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* stime */
+  if (fscanf (f, "%d ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* utime, children */
+  if (fscanf (f, "%d ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* stime, children */
+  if (fscanf (f, "%d ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* jiffies remaining in current time slice */
+  if (fscanf (f, "%d ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* 'nice' value */
+  if (fscanf (f, "%d ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* jiffies until next timeout */
+  if (fscanf (f, "%u ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* jiffies until next SIGALRM */
+  if (fscanf (f, "%u ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* start time (jiffies since system boot) */
+  if (fscanf (f, "%d ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+
+  /* Virtual memory size */
+  if (fscanf (f, "%u ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  *vsize = (size_t) itmp;
+
+  /* Resident set size */
+  if (fscanf (f, "%u ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  *rss = (size_t) itmp * page_size;
+
+  /* rlim */
+  if (fscanf (f, "%u ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* Start of text */
+  if (fscanf (f, "%u ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* End of text */
+  if (fscanf (f, "%u ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+  /* Start of stack */
+  if (fscanf (f, "%u ", &itmp) == 0) goto error; /* coverity[secure_coding] */
+
+  fclose (f);
+
+  return 0;
+
+error:
+  fclose (f);
+  return -1;
+}
+
+
+int OS::GetExecutablePath(char* buffer, size_t* size) {
+  *size = readlink("/proc/self/exe", buffer, *size - 1);
+  if (*size <= 0) return -1;
+  buffer[*size] = '\0';
+  return 0;
+}
+
+}  // namespace node