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-rw-r--r--src/H5FDmpio.c34
1 files changed, 18 insertions, 16 deletions
diff --git a/src/H5FDmpio.c b/src/H5FDmpio.c
index 87f8b6a..f9d1032 100644
--- a/src/H5FDmpio.c
+++ b/src/H5FDmpio.c
@@ -187,15 +187,15 @@ done:
/*-------------------------------------------------------------------------
- * Function: H5FD_mpio_init
+ * Function: H5FD_mpio_init
*
- * Purpose: Initialize this driver by registering the driver with the
- * library.
+ * Purpose: Initialize this driver by registering the driver with the
+ * library.
*
- * Return: Success: The driver ID for the mpio driver.
- * Failure: Negative.
+ * Return: Success: The driver ID for the mpio driver
+ * Failure: H5I_INVALID_HID
*
- * Programmer: Robb Matzke
+ * Programmer: Robb Matzke
* Thursday, August 5, 1999
*
*-------------------------------------------------------------------------
@@ -206,10 +206,10 @@ H5FD_mpio_init(void)
#ifdef H5FDmpio_DEBUG
static int H5FD_mpio_Debug_inited = 0;
#endif /* H5FDmpio_DEBUG */
- const char *s; /* String for environment variables */
- hid_t ret_value; /* Return value */
+ const char *s; /* String for environment variables */
+ hid_t ret_value = H5I_INVALID_HID; /* Return value */
- FUNC_ENTER_NOAPI(FAIL)
+ FUNC_ENTER_NOAPI(H5I_INVALID_HID)
/* Register the MPI-IO VFD, if it isn't already */
if(H5I_VFL != H5I_get_type(H5FD_MPIO_g))
@@ -217,8 +217,10 @@ H5FD_mpio_init(void)
/* Allow MPI buf-and-file-type optimizations? */
s = HDgetenv("HDF5_MPI_OPT_TYPES");
- if(s && HDisdigit(*s))
- H5FD_mpi_opt_types_g = (hbool_t)HDstrtol(s, NULL, 0);
+ if(s && HDisdigit(*s)) {
+ long env_val = HDstrtol(s, NULL, 0);
+ H5FD_mpi_opt_types_g = (0 == env_val) ? FALSE : TRUE;
+ }
#ifdef H5FDmpio_DEBUG
if(!H5FD_mpio_Debug_inited) {
@@ -226,12 +228,12 @@ H5FD_mpio_init(void)
s = HDgetenv("H5FD_mpio_Debug");
if(s) {
/* Set debug mask */
- while(*s) {
- H5FD_mpio_Debug[(int)*s]++;
- s++;
- } /* end while */
+ while(*s) {
+ H5FD_mpio_Debug[(int)*s]++;
+ s++;
+ } /* end while */
} /* end if */
- H5FD_mpio_Debug_inited++;
+ H5FD_mpio_Debug_inited++;
} /* end if */
#endif /* H5FDmpio_DEBUG */