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-rw-r--r--src/H5Defl.c196
1 files changed, 124 insertions, 72 deletions
diff --git a/src/H5Defl.c b/src/H5Defl.c
index c8d1098..7dac29b 100644
--- a/src/H5Defl.c
+++ b/src/H5Defl.c
@@ -33,30 +33,88 @@
#include "H5Eprivate.h" /* Error handling */
#include "H5Fprivate.h" /* Files */
+
/****************/
/* Local Macros */
/****************/
+
/******************/
/* Local Typedefs */
/******************/
+
/********************/
/* Local Prototypes */
/********************/
-static herr_t H5D_efl_read (const H5O_efl_t *efl, haddr_t addr, size_t size,
+
+/* Layout operation callbacks */
+static herr_t H5D_efl_io_init(const H5D_io_info_t *io_info, const H5D_type_info_t *type_info,
+ hsize_t nelmts, const H5S_t *file_space, const H5S_t *mem_space,
+ H5D_chunk_map_t *cm);
+static ssize_t H5D_efl_readvv(const H5D_io_info_t *io_info,
+ size_t dset_max_nseq, size_t *dset_curr_seq, size_t dset_len_arr[], hsize_t dset_offset_arr[],
+ size_t mem_max_nseq, size_t *mem_curr_seq, size_t mem_len_arr[], hsize_t mem_offset_arr[]);
+static ssize_t H5D_efl_writevv(const H5D_io_info_t *io_info,
+ size_t dset_max_nseq, size_t *dset_curr_seq, size_t dset_len_arr[], hsize_t dset_offset_arr[],
+ size_t mem_max_nseq, size_t *mem_curr_seq, size_t mem_len_arr[], hsize_t mem_offset_arr[]);
+
+/* Helper routines */
+static herr_t H5D_efl_read(const H5O_efl_t *efl, haddr_t addr, size_t size,
uint8_t *buf);
static herr_t H5D_efl_write(const H5O_efl_t *efl, haddr_t addr, size_t size,
const uint8_t *buf);
+
/*********************/
/* Package Variables */
/*********************/
+/* External File List (EFL) storage layout I/O ops */
+const H5D_layout_ops_t H5D_LOPS_EFL[1] = {{
+ H5D_efl_io_init,
+ H5D_contig_read,
+ H5D_contig_write,
+#ifdef H5_HAVE_PARALLEL
+ NULL,
+ NULL,
+#endif /* H5_HAVE_PARALLEL */
+ H5D_efl_readvv,
+ H5D_efl_writevv,
+ NULL
+}};
+
+
/*******************/
/* Local Variables */
/*******************/
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5D_efl_io_init
+ *
+ * Purpose: Performs initialization before any sort of I/O on the raw data
+ *
+ * Return: Non-negative on success/Negative on failure
+ *
+ * Programmer: Quincey Koziol
+ * Thursday, March 20, 2008
+ *
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5D_efl_io_init(const H5D_io_info_t *io_info, const H5D_type_info_t UNUSED *type_info,
+ hsize_t UNUSED nelmts, const H5S_t UNUSED *file_space, const H5S_t UNUSED *mem_space,
+ H5D_chunk_map_t UNUSED *cm)
+{
+ FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5D_efl_io_init)
+
+ HDmemcpy(&io_info->store->efl, &(io_info->dset->shared->dcpl_cache.efl), sizeof(H5O_efl_t));
+
+ FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5D_efl_io_init() */
+
/*-------------------------------------------------------------------------
* Function: H5D_efl_read
@@ -77,26 +135,26 @@ static herr_t H5D_efl_write(const H5O_efl_t *efl, haddr_t addr, size_t size,
*-------------------------------------------------------------------------
*/
static herr_t
-H5D_efl_read (const H5O_efl_t *efl, haddr_t addr, size_t size, uint8_t *buf)
+H5D_efl_read(const H5O_efl_t *efl, haddr_t addr, size_t size, uint8_t *buf)
{
- int fd=-1;
+ int fd = -1;
size_t to_read;
#ifndef NDEBUG
hsize_t tempto_read;
#endif /* NDEBUG */
- hsize_t skip=0;
+ hsize_t skip = 0;
haddr_t cur;
ssize_t n;
size_t u; /* Local index variable */
- herr_t ret_value=SUCCEED; /* Return value */
+ herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5D_efl_read)
/* Check args */
- assert (efl && efl->nused>0);
- assert (H5F_addr_defined (addr));
- assert (size < SIZET_MAX);
- assert (buf || 0==size);
+ HDassert(efl && efl->nused>0);
+ HDassert(H5F_addr_defined(addr));
+ HDassert(size < SIZET_MAX);
+ HDassert(buf || 0 == size);
/* Find the first efl member from which to read */
for (u=0, cur=0; u<efl->nused; u++) {
@@ -109,7 +167,7 @@ H5D_efl_read (const H5O_efl_t *efl, haddr_t addr, size_t size, uint8_t *buf)
/* Read the data */
while (size) {
- assert(buf);
+ HDassert(buf);
if (u>=efl->nused)
HGOTO_ERROR (H5E_EFL, H5E_OVERFLOW, FAIL, "read past logical end of file")
if (H5F_OVERFLOW_HSIZET2OFFT (efl->slot[u].offset+skip))
@@ -165,25 +223,25 @@ done:
*-------------------------------------------------------------------------
*/
static herr_t
-H5D_efl_write (const H5O_efl_t *efl, haddr_t addr, size_t size, const uint8_t *buf)
+H5D_efl_write(const H5O_efl_t *efl, haddr_t addr, size_t size, const uint8_t *buf)
{
- int fd=-1;
+ int fd = -1;
size_t to_write;
#ifndef NDEBUG
hsize_t tempto_write;
#endif /* NDEBUG */
haddr_t cur;
- hsize_t skip=0;
+ hsize_t skip = 0;
size_t u; /* Local index variable */
- herr_t ret_value=SUCCEED; /* Return value */
+ herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5D_efl_write)
/* Check args */
- assert (efl && efl->nused>0);
- assert (H5F_addr_defined (addr));
- assert (size < SIZET_MAX);
- assert (buf || 0==size);
+ HDassert(efl && efl->nused>0);
+ HDassert(H5F_addr_defined(addr));
+ HDassert(size < SIZET_MAX);
+ HDassert(buf || 0 == size);
/* Find the first efl member in which to write */
for (u=0, cur=0; u<efl->nused; u++) {
@@ -248,71 +306,68 @@ done:
* Programmer: Quincey Koziol
* Wednesday, May 7, 2003
*
- * Modifications:
- *
*-------------------------------------------------------------------------
*/
-ssize_t
+static ssize_t
H5D_efl_readvv(const H5D_io_info_t *io_info,
size_t dset_max_nseq, size_t *dset_curr_seq, size_t dset_len_arr[], hsize_t dset_offset_arr[],
- size_t mem_max_nseq, size_t *mem_curr_seq, size_t mem_len_arr[], hsize_t mem_offset_arr[],
- haddr_t UNUSED address, void UNUSED *pointer/*in*/, void *_buf)
+ size_t mem_max_nseq, size_t *mem_curr_seq, size_t mem_len_arr[], hsize_t mem_offset_arr[])
{
- const H5O_efl_t *efl=&(io_info->store->efl); /* Pointer to efl info */
+ const H5O_efl_t *efl = &(io_info->store->efl); /* Pointer to efl info */
unsigned char *buf; /* Pointer to buffer to write */
haddr_t addr; /* Actual address to read */
- size_t total_size=0; /* Total size of sequence in bytes */
+ size_t total_size = 0; /* Total size of sequence in bytes */
size_t size; /* Size of sequence in bytes */
size_t u; /* Counting variable */
size_t v; /* Counting variable */
ssize_t ret_value; /* Return value */
- FUNC_ENTER_NOAPI(H5D_efl_readvv, FAIL)
+ FUNC_ENTER_NOAPI_NOINIT(H5D_efl_readvv)
/* Check args */
- assert (efl && efl->nused>0);
- assert (_buf);
+ HDassert(efl && efl->nused > 0);
+ HDassert(io_info->u.rbuf);
/* Work through all the sequences */
- for(u=*dset_curr_seq, v=*mem_curr_seq; u<dset_max_nseq && v<mem_max_nseq; ) {
+ for(u = *dset_curr_seq, v = *mem_curr_seq; u < dset_max_nseq && v < mem_max_nseq; ) {
/* Choose smallest buffer to write */
- if(mem_len_arr[v]<dset_len_arr[u])
- size=mem_len_arr[v];
+ if(mem_len_arr[v] < dset_len_arr[u])
+ size = mem_len_arr[v];
else
- size=dset_len_arr[u];
+ size = dset_len_arr[u];
/* Compute offset on disk */
- addr=dset_offset_arr[u];
+ addr = dset_offset_arr[u];
/* Compute offset in memory */
- buf = (unsigned char *)_buf + mem_offset_arr[v];
+ buf = (unsigned char *)io_info->u.rbuf + mem_offset_arr[v];
/* Read data */
- if (H5D_efl_read(efl, addr, size, buf)<0)
+ if(H5D_efl_read(efl, addr, size, buf) < 0)
HGOTO_ERROR(H5E_IO, H5E_WRITEERROR, FAIL, "block write failed")
/* Update memory information */
- mem_len_arr[v]-=size;
- mem_offset_arr[v]+=size;
- if(mem_len_arr[v]==0)
+ mem_len_arr[v] -= size;
+ mem_offset_arr[v] += size;
+ if(mem_len_arr[v] == 0)
v++;
/* Update file information */
- dset_len_arr[u]-=size;
- dset_offset_arr[u]+=size;
- if(dset_len_arr[u]==0)
+ dset_len_arr[u] -= size;
+ dset_offset_arr[u] += size;
+ if(dset_len_arr[u] == 0)
u++;
/* Increment number of bytes copied */
- total_size+=size;
+ total_size += size;
} /* end for */
/* Update current sequence vectors */
- *dset_curr_seq=u;
- *mem_curr_seq=v;
+ *dset_curr_seq = u;
+ *mem_curr_seq = v;
/* Set return value */
- H5_ASSIGN_OVERFLOW(ret_value,total_size,size_t,ssize_t);
+ H5_ASSIGN_OVERFLOW(ret_value, total_size, size_t, ssize_t);
done:
FUNC_LEAVE_NOAPI(ret_value)
@@ -332,71 +387,68 @@ done:
* Programmer: Quincey Koziol
* Friday, May 2, 2003
*
- * Modifications:
- *
*-------------------------------------------------------------------------
*/
-ssize_t
+static ssize_t
H5D_efl_writevv(const H5D_io_info_t *io_info,
size_t dset_max_nseq, size_t *dset_curr_seq, size_t dset_len_arr[], hsize_t dset_offset_arr[],
- size_t mem_max_nseq, size_t *mem_curr_seq, size_t mem_len_arr[], hsize_t mem_offset_arr[],
- haddr_t UNUSED address, void UNUSED *pointer/*in*/, const void *_buf)
+ size_t mem_max_nseq, size_t *mem_curr_seq, size_t mem_len_arr[], hsize_t mem_offset_arr[])
{
- const H5O_efl_t *efl=&(io_info->store->efl); /* Pointer to efl info */
+ const H5O_efl_t *efl = &(io_info->store->efl); /* Pointer to efl info */
const unsigned char *buf; /* Pointer to buffer to write */
haddr_t addr; /* Actual address to read */
- size_t total_size=0; /* Total size of sequence in bytes */
+ size_t total_size = 0; /* Total size of sequence in bytes */
size_t size; /* Size of sequence in bytes */
size_t u; /* Counting variable */
size_t v; /* Counting variable */
ssize_t ret_value; /* Return value */
- FUNC_ENTER_NOAPI(H5D_efl_writevv, FAIL)
+ FUNC_ENTER_NOAPI_NOINIT(H5D_efl_writevv)
/* Check args */
- assert (efl && efl->nused>0);
- assert (_buf);
+ HDassert(efl && efl->nused > 0);
+ HDassert(io_info->u.wbuf);
/* Work through all the sequences */
- for(u=*dset_curr_seq, v=*mem_curr_seq; u<dset_max_nseq && v<mem_max_nseq; ) {
+ for(u = *dset_curr_seq, v = *mem_curr_seq; u < dset_max_nseq && v < mem_max_nseq; ) {
/* Choose smallest buffer to write */
- if(mem_len_arr[v]<dset_len_arr[u])
- size=mem_len_arr[v];
+ if(mem_len_arr[v] < dset_len_arr[u])
+ size = mem_len_arr[v];
else
- size=dset_len_arr[u];
+ size = dset_len_arr[u];
/* Compute offset on disk */
- addr=dset_offset_arr[u];
+ addr = dset_offset_arr[u];
/* Compute offset in memory */
- buf = (const unsigned char *)_buf + mem_offset_arr[v];
+ buf = (const unsigned char *)io_info->u.wbuf + mem_offset_arr[v];
/* Write data */
- if (H5D_efl_write(efl, addr, size, buf)<0)
+ if(H5D_efl_write(efl, addr, size, buf) < 0)
HGOTO_ERROR(H5E_IO, H5E_WRITEERROR, FAIL, "block write failed")
/* Update memory information */
- mem_len_arr[v]-=size;
- mem_offset_arr[v]+=size;
- if(mem_len_arr[v]==0)
+ mem_len_arr[v] -= size;
+ mem_offset_arr[v] += size;
+ if(mem_len_arr[v] == 0)
v++;
/* Update file information */
- dset_len_arr[u]-=size;
- dset_offset_arr[u]+=size;
- if(dset_len_arr[u]==0)
+ dset_len_arr[u] -= size;
+ dset_offset_arr[u] += size;
+ if(dset_len_arr[u] == 0)
u++;
/* Increment number of bytes copied */
- total_size+=size;
+ total_size += size;
} /* end for */
/* Update current sequence vectors */
- *dset_curr_seq=u;
- *mem_curr_seq=v;
+ *dset_curr_seq = u;
+ *mem_curr_seq = v;
/* Set return value */
- H5_ASSIGN_OVERFLOW(ret_value,total_size,size_t,ssize_t);
+ H5_ASSIGN_OVERFLOW(ret_value, total_size, size_t, ssize_t);
done:
FUNC_LEAVE_NOAPI(ret_value)