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feature/mu
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hdf5-1_8_0
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38d92b76a7 |
321
src/H5CS.c
321
src/H5CS.c
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by the Board of Trustees of the University of Illinois. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the files COPYING and Copyright.html. COPYING can be found at the root *
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* of the source code distribution tree; Copyright.html can be found at the *
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* root level of an installed copy of the electronic HDF5 document set and *
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* is linked from the top-level documents page. It can also be found at *
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* http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
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* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/*
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* Purpose: Provides internal function tracing in the form of a stack.
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* The FUNC_ENTER() macro adds the function name to the function
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* stack whenever a function is entered.
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* As the functions return with FUNC_LEAVE,
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* entries are removed from the stack.
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*
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* A function stack has a fixed maximum size. If this size is
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* exceeded then the stack will be truncated and only the
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* first called functions will have entries on the stack. This is
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* expected to be a rare condition.
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*
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*/
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#include "H5private.h" /* Generic Functions */
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#include "H5FSprivate.h" /* Function stack */
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#include "H5MMprivate.h" /* Memory management */
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#ifdef H5_HAVE_FUNCSTACK
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#ifdef H5_HAVE_THREADSAFE
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/*
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* The per-thread function stack. pthread_once() initializes a special
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* key that will be used by all threads to create a stack specific to
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* each thread individually. The association of stacks to threads will
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* be handled by the pthread library.
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*
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* In order for this macro to work, H5FS_get_my_stack() must be preceeded
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* by "H5FS_t *fstack =".
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*/
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static H5FS_t *H5FS_get_stack(void);
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#define H5FS_get_my_stack() H5FS_get_stack()
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#else /* H5_HAVE_THREADSAFE */
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/*
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* The function stack. Eventually we'll have some sort of global table so each
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* thread has it's own stack. The stacks will be created on demand when the
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* thread first calls H5FS_push(). */
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H5FS_t H5FS_stack_g[1];
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#define H5FS_get_my_stack() (H5FS_stack_g+0)
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#endif /* H5_HAVE_THREADSAFE */
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#ifdef H5_HAVE_THREADSAFE
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/*-------------------------------------------------------------------------
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* Function: H5FS_get_stack
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*
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* Purpose: Support function for H5FS_get_my_stack() to initialize and
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* acquire per-thread function stack.
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*
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* Return: Success: function stack (H5FS_t *)
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*
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* Failure: NULL
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*
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* Programmer: Quincey Koziol
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* February 6, 2003
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*
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* Modifications:
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*
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*-------------------------------------------------------------------------
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*/
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static H5FS_t *
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H5FS_get_stack(void)
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{
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H5FS_t *fstack;
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FUNC_ENTER_NOAPI_NOFUNC_NOFS(H5FS_get_stack);
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fstack = pthread_getspecific(H5TS_funcstk_key_g);
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if (!fstack) {
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/* no associated value with current thread - create one */
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fstack = (H5FS_t *)HDmalloc(sizeof(H5FS_t)); /* Don't use H5MM_malloc() here, it causes infinite recursion */
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HDassert(fstack);
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/* Set the thread-specific info */
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fstack->nused=0;
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/* (It's not necessary to release this in this API, it is
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* released by the "key destructor" set up in the H5TS
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* routines. See calls to pthread_key_create() in H5TS.c -QAK)
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*/
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pthread_setspecific(H5TS_funcstk_key_g, (void *)fstack);
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}
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FUNC_LEAVE_NOAPI_NOFS(fstack);
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} /* end H5FS_get_stack() */
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#endif /* H5_HAVE_THREADSAFE */
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/*-------------------------------------------------------------------------
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* Function: H5FS_print_stack
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*
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* Purpose: Prints a function stack.
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*
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* Return: Non-negative on success/Negative on failure
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*
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* Programmer: Quincey Koziol
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* Thursday, February 6, 2003
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*
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* Modifications:
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*
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*-------------------------------------------------------------------------
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*/
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herr_t
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H5FS_print_stack(const H5FS_t *fstack, FILE *stream)
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{
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const int indent = 2; /* Indention level */
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int i; /* Local index ariable */
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/* Don't push this function on the function stack... :-) */
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FUNC_ENTER_NOAPI_NOFUNC_NOFS(H5FS_print_stack);
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/* Sanity check */
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HDassert(fstack);
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/* Default to outputting information to stderr */
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if (!stream)
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stream = stderr;
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HDfprintf (stream, "HDF5-DIAG: Function stack from %s ", H5_lib_vers_info_g);
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/* try show the process or thread id in multiple processes cases*/
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#ifdef H5_HAVE_THREADSAFE
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HDfprintf (stream, "thread %d.", (int)pthread_self());
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#else /* H5_HAVE_THREADSAFE */
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HDfprintf (stream, "thread 0.");
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#endif /* H5_HAVE_THREADSAFE */
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if (fstack && fstack->nused>0)
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HDfprintf (stream, " Back trace follows.");
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HDfputc ('\n', stream);
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for (i=fstack->nused-1; i>=0; --i)
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HDfprintf(stream, "%*s#%03d: Routine: %s\n", indent, "", i, fstack->slot[i]);
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FUNC_LEAVE_NOAPI_NOFS(SUCCEED);
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} /* end H5FS_print_stack() */
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/*-------------------------------------------------------------------------
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* Function: H5FS_print
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*
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* Purpose: Prints the default function stack in some default way.
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*
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* Return: Non-negative on success/Negative on failure
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*
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* Programmer: Quincey Koziol
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* Thursday, February 6, 2003
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*
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* Modifications:
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*
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*-------------------------------------------------------------------------
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*/
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herr_t
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H5FS_print(FILE *stream)
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{
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H5FS_t *fstack = H5FS_get_my_stack (); /* Get the correct function stack */
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/* Don't push this function on the function stack... :-) */
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FUNC_ENTER_NOAPI_NOFUNC_NOFS(H5FS_print);
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/* Sanity check */
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assert(fstack);
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H5FS_print_stack(fstack, stream);
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FUNC_LEAVE_NOAPI_NOFS(SUCCEED);
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} /* end H5FS_print() */
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/*-------------------------------------------------------------------------
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* Function: H5FS_push
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*
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* Purpose: Pushes a new record onto function stack for the current
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* thread.
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*
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* Return: Non-negative on success/Negative on failure
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*
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* Programmer: Quincey Koziol
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* Thursday, February 6, 2003
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*
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* Modifications:
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*
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*-------------------------------------------------------------------------
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*/
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herr_t
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H5FS_push(const char *func_name)
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{
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H5FS_t *fstack = H5FS_get_my_stack ();
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/* Don't push this function on the function stack... :-) */
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FUNC_ENTER_NOAPI_NOFUNC_NOFS(H5FS_push);
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/* Sanity check */
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assert (fstack);
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assert (func_name);
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/*
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* Push the function if there's room. Otherwise just increment count
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*/
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if (fstack->nused<H5FS_NSLOTS)
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fstack->slot[fstack->nused] = func_name;
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fstack->nused++;
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FUNC_LEAVE_NOAPI_NOFS(SUCCEED);
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} /* end H5FS_push() */
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/*-------------------------------------------------------------------------
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* Function: H5FS_pop
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*
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* Purpose: Pops a record off function stack for the current thread.
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*
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* Return: Non-negative on success/Negative on failure
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*
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* Programmer: Quincey Koziol
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* Thursday, February 6, 2003
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*
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* Modifications:
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*
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*-------------------------------------------------------------------------
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*/
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herr_t
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H5FS_pop(void)
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{
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H5FS_t *fstack = H5FS_get_my_stack ();
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/* Don't push this function on the function stack... :-) */
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FUNC_ENTER_NOAPI_NOFUNC_NOFS(H5FS_pop);
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/* Sanity check */
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assert (fstack);
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assert (fstack->nused>0);
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/* Pop the function. */
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fstack->nused--;
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FUNC_LEAVE_NOAPI_NOFS(SUCCEED);
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} /* end H5FS_pop() */
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/*-------------------------------------------------------------------------
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* Function: H5FS_copy_stack
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*
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* Purpose: Makes a copy of the current stack
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*
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* Return: Non-negative on success/Negative on failure
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*
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* Programmer: Quincey Koziol
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* Tuesday, August 9, 2005
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*
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* Modifications:
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*
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*-------------------------------------------------------------------------
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*/
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herr_t
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H5FS_copy_stack(H5FS_t *new_stack)
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{
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H5FS_t *old_stack = H5FS_get_my_stack ();
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unsigned u; /* Local index variable */
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/* Don't push this function on the function stack... :-) */
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FUNC_ENTER_NOAPI_NOFUNC_NOFS(H5FS_copy_stack);
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/* Sanity check */
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HDassert (old_stack);
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/* Copy old stack to new one, duplicating the strings */
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for(u = 0; u < old_stack->nused; u++)
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new_stack->slot[u] = H5MM_strdup(old_stack->slot[u]);
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new_stack->nused = old_stack->nused;
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FUNC_LEAVE_NOAPI_NOFS(SUCCEED);
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} /* end H5FS_copy_stack() */
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/*-------------------------------------------------------------------------
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* Function: H5FS_close_stack
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*
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* Purpose: Closes a copy of a stack
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*
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* Return: Non-negative on success/Negative on failure
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*
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* Programmer: Quincey Koziol
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* Tuesday, August 9, 2005
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*
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* Modifications:
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*
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*-------------------------------------------------------------------------
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*/
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herr_t
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H5FS_close_stack(H5FS_t *stack)
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{
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unsigned u; /* Local index variable */
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/* Don't push this function on the function stack... :-) */
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FUNC_ENTER_NOAPI_NOFUNC_NOFS(H5FS_close_stack);
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/* Sanity check */
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HDassert (stack);
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/* Free strings on stack */
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for(u = 0; u < stack->nused; u++)
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stack->slot[u] = H5MM_xfree((void *)stack->slot[u]);
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FUNC_LEAVE_NOAPI_NOFS(SUCCEED);
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} /* end H5FS_close_stack() */
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#endif /* H5_HAVE_FUNCSTACK */
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@@ -1,43 +0,0 @@
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
|
|
||||||
* Copyright by the Board of Trustees of the University of Illinois. *
|
|
||||||
* All rights reserved. *
|
|
||||||
* *
|
|
||||||
* This file is part of HDF5. The full HDF5 copyright notice, including *
|
|
||||||
* terms governing use, modification, and redistribution, is contained in *
|
|
||||||
* the files COPYING and Copyright.html. COPYING can be found at the root *
|
|
||||||
* of the source code distribution tree; Copyright.html can be found at the *
|
|
||||||
* root level of an installed copy of the electronic HDF5 document set and *
|
|
||||||
* is linked from the top-level documents page. It can also be found at *
|
|
||||||
* http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
|
|
||||||
* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
|
|
||||||
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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|
||||||
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/*
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* Header file for function stacks, etc.
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*/
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#ifndef _H5FSprivate_H
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#define _H5FSprivate_H
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#ifdef NOT_YET
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#include "H5FSpublic.h"
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#endif /* NOT_YET */
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/* Private headers needed by this file */
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||||||
#include "H5private.h"
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#define H5FS_NSLOTS 32 /*number of slots in an function stack */
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/* A function stack */
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||||||
typedef struct H5FS_t {
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unsigned nused; /*num slots currently used in stack */
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const char *slot[H5FS_NSLOTS]; /*array of function records */
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||||||
} H5FS_t;
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H5_DLL herr_t H5FS_push (const char *func_name);
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||||||
H5_DLL herr_t H5FS_pop (void);
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H5_DLL herr_t H5FS_print (FILE *stream);
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||||||
H5_DLL herr_t H5FS_print_stack (const H5FS_t *stack, FILE *stream);
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||||||
H5_DLL herr_t H5FS_copy_stack (H5FS_t *stack);
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||||||
H5_DLL herr_t H5FS_close_stack (H5FS_t *stack);
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||||||
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|
||||||
#endif /* _H5FSprivate_H */
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|
||||||
Reference in New Issue
Block a user