summaryrefslogtreecommitdiffstats
path: root/src/H5FDlog.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/H5FDlog.c')
-rw-r--r--src/H5FDlog.c114
1 files changed, 50 insertions, 64 deletions
diff --git a/src/H5FDlog.c b/src/H5FDlog.c
index 08ea9c6..c441793 100644
--- a/src/H5FDlog.c
+++ b/src/H5FDlog.c
@@ -18,6 +18,7 @@
#include <H5Eprivate.h> /*error handling */
#include <H5Fprivate.h> /*files */
#include <H5FDlog.h> /* logging file driver */
+#include <H5FLprivate.h> /*Free Lists */
#include <H5MMprivate.h> /* Memory allocation */
#include <H5Pprivate.h> /*property lists */
@@ -29,13 +30,6 @@
/* The size of the buffer to track allocation requests */
#define TRACK_BUFFER 5000000
-#define AGGREGATE_METADATA
-
-#ifdef AGGREGATE_METADATA
-/* Define the default size of the minimum metadata block */
-#define METADATA_BLOCK_SIZE 2048
-#endif /* AGGREGATE_METADATA */
-
/* The driver identification number, initialized at runtime */
static hid_t H5FD_LOG_g = 0;
@@ -76,23 +70,10 @@ static const char *flavors[]={ /* These are defined in H5FDpublic.h */
typedef struct H5FD_log_t {
H5FD_t pub; /*public stuff, must be first */
int fd; /*the unix file */
-#ifdef AGGREGATE_METADATA
- haddr_t eoma; /* End of metadata allocated region */
- hsize_t masize; /* Current size of metadata allocated region left */
- hsize_t def_masize; /* Default size of metadata allocated region */
- haddr_t eoa; /* Actual end of allocated region */
-#else /* AGGREGATE_METADATA */
haddr_t eoa; /*end of allocated region */
-#endif /* AGGREGATE_METADATA */
haddr_t eof; /*end of file; current file size*/
haddr_t pos; /*current file I/O position */
int op; /*last operation */
-#ifdef ACCUMULATE_METADATA
- unsigned char *meta_accum; /* Buffer to hold the accumulated metadata */
- haddr_t accum_loc; /* File location (offset) of the accumulated metadata */
- hsize_t accum_size; /* Size of the accumulated metadata (in bytes) */
- uintn accum_dirty; /* Flag to indicate that the accumulated metadata is dirty */
-#endif /* ACCUMULATE_METADATA */
unsigned char *nread; /* Number of reads from a file location */
unsigned char *nwrite; /* Number of write to a file location */
unsigned char *flavor; /* Flavor of information written to file location */
@@ -172,13 +153,14 @@ static H5FD_t *H5FD_log_open(const char *name, unsigned flags, hid_t fapl_id,
haddr_t maxaddr);
static herr_t H5FD_log_close(H5FD_t *_file);
static int H5FD_log_cmp(const H5FD_t *_f1, const H5FD_t *_f2);
+static herr_t H5FD_log_query(const H5FD_t *_f1, unsigned long *flags);
static haddr_t H5FD_log_alloc(H5FD_t *_file, H5FD_mem_t type, hsize_t size);
static haddr_t H5FD_log_get_eoa(H5FD_t *_file);
static herr_t H5FD_log_set_eoa(H5FD_t *_file, haddr_t addr);
static haddr_t H5FD_log_get_eof(H5FD_t *_file);
static herr_t H5FD_log_read(H5FD_t *_file, hid_t fapl_id, haddr_t addr,
hsize_t size, void *buf);
-static herr_t H5FD_log_write(H5FD_t *_file, hid_t fapl_id, haddr_t addr,
+static herr_t H5FD_log_write(H5FD_t *_file, H5FD_mem_t type, hid_t fapl_id, haddr_t addr,
hsize_t size, const void *buf);
static herr_t H5FD_log_flush(H5FD_t *_file);
@@ -211,6 +193,7 @@ static const H5FD_class_t H5FD_log_g = {
H5FD_log_open, /*open */
H5FD_log_close, /*close */
H5FD_log_cmp, /*cmp */
+ H5FD_log_query, /*query */
H5FD_log_alloc, /*alloc */
NULL, /*free */
H5FD_log_get_eoa, /*get_eoa */
@@ -285,7 +268,10 @@ H5Pset_fapl_log(hid_t fapl_id, const char *logfile, int verbosity)
if (H5P_FILE_ACCESS!=H5Pget_class(fapl_id))
HRETURN_ERROR(H5E_PLIST, H5E_BADTYPE, FAIL, "not a fapl");
- fa.logfile = H5MM_xstrdup(logfile);
+ if(logfile!=NULL)
+ fa.logfile = H5MM_xstrdup(logfile);
+ else
+ fa.logfile = NULL;
fa.verbosity=verbosity;
ret_value= H5Pset_driver(fapl_id, H5FD_LOG, &fa);
@@ -386,7 +372,8 @@ H5FD_log_fapl_free(void *_fa)
FUNC_ENTER(H5FD_log_fapl_free, FAIL);
/* Free the fapl information */
- H5MM_xfree(fa->logfile);
+ if(fa->logfile)
+ H5MM_xfree(fa->logfile);
H5MM_xfree(fa);
FUNC_LEAVE(SUCCEED);
@@ -459,10 +446,6 @@ H5FD_log_open(const char *name, unsigned flags, hid_t fapl_id,
fa = H5Pget_driver_info(fapl_id);
file->fd = fd;
-#ifdef AGGREGATE_METADATA
- /* Set the default metadata block size, this could easily be user-tunable */
- file->def_masize=METADATA_BLOCK_SIZE;
-#endif /* AGGREGATE_METADATA */
file->eof = sb.st_size;
file->pos = HADDR_UNDEF;
file->op = OP_UNKNOWN;
@@ -520,6 +503,7 @@ H5FD_log_close(H5FD_t *_file)
if (H5FD_log_flush(_file)<0)
HRETURN_ERROR(H5E_IO, H5E_WRITEERROR, FAIL, "unable to flush file");
+
if (close(file->fd)<0)
HRETURN_ERROR(H5E_IO, H5E_CANTCLOSEFILE, FAIL, "unable to close file");
@@ -635,6 +619,41 @@ H5FD_log_cmp(const H5FD_t *_f1, const H5FD_t *_f2)
/*-------------------------------------------------------------------------
+ * Function: H5FD_log_query
+ *
+ * Purpose: Set the flags that this VFL driver is capable of supporting.
+ * (listed in H5FDpublic.h)
+ *
+ * Return: Success: non-negative
+ *
+ * Failure: negative
+ *
+ * Programmer: Quincey Koziol
+ * Friday, August 25, 2000
+ *
+ * Modifications:
+ *
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5FD_log_query(const H5FD_t *_f, unsigned long *flags /* out */)
+{
+ const H5FD_log_t *f = (const H5FD_log_t*)_f;
+ herr_t ret_value=SUCCEED;
+
+ FUNC_ENTER(H5FD_log_query, FAIL);
+
+ /* Set the VFL feature flags that this driver supports */
+ if(flags) {
+ *flags|=H5FD_FEAT_AGGREGATE_METADATA; /* OK to aggregate metadata allocations */
+ *flags|=H5FD_FEAT_ACCUMULATE_METADATA; /* OK to accumulate metadata for faster writes */
+ } /* end if */
+
+ FUNC_LEAVE(ret_value);
+}
+
+
+/*-------------------------------------------------------------------------
* Function: H5FD_log_alloc
*
* Purpose: Allocate file memory.
@@ -658,44 +677,8 @@ H5FD_log_alloc(H5FD_t *_file, H5FD_mem_t type, hsize_t size)
FUNC_ENTER(H5FD_log_alloc, HADDR_UNDEF);
-#ifdef AGGREGATE_METADATA
- /* Allocate all types of metadata out of the metadata block */
- if(type!=H5FD_MEM_DRAW) {
- /* Check if the space requested is larger than the space left in the block */
- if(size>file->masize) {
- /* Check if the block asked for is too large for a metadata block */
- if(size>=file->def_masize) {
- /* Allocate just enough room for this new block the regular way */
- addr = file->eoa;
- file->eoa += size;
- } /* end if */
- else {
- /* Allocate another metadata block */
- file->eoma=file->eoa;
- file->masize=file->def_masize;
- file->eoa += file->masize;
-
- /* Allocate space out of the metadata block */
- addr=file->eoma;
- file->masize-=size;
- file->eoma+=size;
- } /* end else */
- } /* end if */
- else {
- /* Allocate space out of the metadata block */
- addr=file->eoma;
- file->masize-=size;
- file->eoma+=size;
- } /* end else */
- } /* end if */
- else { /* Allocate raw data the regular way */
- addr = file->eoa;
- file->eoa += size;
- } /* end else */
-#else /* AGGREGATE_METADATA */
addr = file->eoa;
file->eoa += size;
-#endif /* AGGREGATE_METADATA */
#ifdef QAK
printf("%s: flavor=%s, size=%lu\n",FUNC,flavors[type],(unsigned long)size);
@@ -917,7 +900,7 @@ H5FD_log_read(H5FD_t *_file, hid_t UNUSED dxpl_id, haddr_t addr,
*-------------------------------------------------------------------------
*/
static herr_t
-H5FD_log_write(H5FD_t *_file, hid_t UNUSED dxpl_id, haddr_t addr,
+H5FD_log_write(H5FD_t *_file, H5FD_mem_t type, hid_t UNUSED dxpl_id, haddr_t addr,
hsize_t size, const void *buf)
{
H5FD_log_t *file = (H5FD_log_t*)_file;
@@ -928,6 +911,9 @@ H5FD_log_write(H5FD_t *_file, hid_t UNUSED dxpl_id, haddr_t addr,
assert(file && file->pub.cls);
assert(buf);
+ /* Verify that we are writing out the type of data we allocated in this location */
+ assert(type==file->flavor[addr]);
+
/* Check for overflow conditions */
if (HADDR_UNDEF==addr)
HRETURN_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "addr undefined");
generated by cgit v0.12 at 2024-11-17 08:01:08 (GMT)