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-rw-r--r--src/H5FS.c321
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diff --git a/src/H5FS.c b/src/H5FS.c
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--- a/src/H5FS.c
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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. *
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-/*
- * Purpose: Provides internal function tracing in the form of a stack.
- * The FUNC_ENTER() macro adds the function name to the function
- * stack whenever a function is entered.
- * As the functions return with FUNC_LEAVE,
- * entries are removed from the stack.
- *
- * A function stack has a fixed maximum size. If this size is
- * exceeded then the stack will be truncated and only the
- * first called functions will have entries on the stack. This is
- * expected to be a rare condition.
- *
- */
-
-
-#include "H5private.h" /* Generic Functions */
-#include "H5FSprivate.h" /* Function stack */
-#include "H5MMprivate.h" /* Memory management */
-
-#ifdef H5_HAVE_FUNCSTACK
-
-#ifdef H5_HAVE_THREADSAFE
-/*
- * The per-thread function stack. pthread_once() initializes a special
- * key that will be used by all threads to create a stack specific to
- * each thread individually. The association of stacks to threads will
- * be handled by the pthread library.
- *
- * In order for this macro to work, H5FS_get_my_stack() must be preceeded
- * by "H5FS_t *fstack =".
- */
-static H5FS_t *H5FS_get_stack(void);
-#define H5FS_get_my_stack() H5FS_get_stack()
-#else /* H5_HAVE_THREADSAFE */
-/*
- * The function stack. Eventually we'll have some sort of global table so each
- * thread has it's own stack. The stacks will be created on demand when the
- * thread first calls H5FS_push(). */
-H5FS_t H5FS_stack_g[1];
-#define H5FS_get_my_stack() (H5FS_stack_g+0)
-#endif /* H5_HAVE_THREADSAFE */
-
-
-#ifdef H5_HAVE_THREADSAFE
-/*-------------------------------------------------------------------------
- * Function: H5FS_get_stack
- *
- * Purpose: Support function for H5FS_get_my_stack() to initialize and
- * acquire per-thread function stack.
- *
- * Return: Success: function stack (H5FS_t *)
- *
- * Failure: NULL
- *
- * Programmer: Quincey Koziol
- * February 6, 2003
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-static H5FS_t *
-H5FS_get_stack(void)
-{
- H5FS_t *fstack;
-
- FUNC_ENTER_NOAPI_NOFUNC_NOFS(H5FS_get_stack);
-
- fstack = pthread_getspecific(H5TS_funcstk_key_g);
- if (!fstack) {
- /* no associated value with current thread - create one */
- fstack = (H5FS_t *)HDmalloc(sizeof(H5FS_t)); /* Don't use H5MM_malloc() here, it causes infinite recursion */
- HDassert(fstack);
-
- /* Set the thread-specific info */
- fstack->nused=0;
-
- /* (It's not necessary to release this in this API, it is
- * released by the "key destructor" set up in the H5TS
- * routines. See calls to pthread_key_create() in H5TS.c -QAK)
- */
- pthread_setspecific(H5TS_funcstk_key_g, (void *)fstack);
- }
-
- FUNC_LEAVE_NOAPI_NOFS(fstack);
-} /* end H5FS_get_stack() */
-#endif /* H5_HAVE_THREADSAFE */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5FS_print_stack
- *
- * Purpose: Prints a function stack.
- *
- * Return: Non-negative on success/Negative on failure
- *
- * Programmer: Quincey Koziol
- * Thursday, February 6, 2003
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-herr_t
-H5FS_print_stack(const H5FS_t *fstack, FILE *stream)
-{
- const int indent = 2; /* Indention level */
- int i; /* Local index ariable */
-
- /* Don't push this function on the function stack... :-) */
- FUNC_ENTER_NOAPI_NOFUNC_NOFS(H5FS_print_stack);
-
- /* Sanity check */
- HDassert(fstack);
-
- /* Default to outputting information to stderr */
- if (!stream)
- stream = stderr;
-
- HDfprintf (stream, "HDF5-DIAG: Function stack from %s ", H5_lib_vers_info_g);
- /* try show the process or thread id in multiple processes cases*/
-#ifdef H5_HAVE_THREADSAFE
- HDfprintf (stream, "thread %d.", (int)pthread_self());
-#else /* H5_HAVE_THREADSAFE */
- HDfprintf (stream, "thread 0.");
-#endif /* H5_HAVE_THREADSAFE */
- if (fstack && fstack->nused>0)
- HDfprintf (stream, " Back trace follows.");
- HDfputc ('\n', stream);
-
- for (i=fstack->nused-1; i>=0; --i)
- HDfprintf(stream, "%*s#%03d: Routine: %s\n", indent, "", i, fstack->slot[i]);
-
- FUNC_LEAVE_NOAPI_NOFS(SUCCEED);
-} /* end H5FS_print_stack() */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5FS_print
- *
- * Purpose: Prints the default function stack in some default way.
- *
- * Return: Non-negative on success/Negative on failure
- *
- * Programmer: Quincey Koziol
- * Thursday, February 6, 2003
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-herr_t
-H5FS_print(FILE *stream)
-{
- H5FS_t *fstack = H5FS_get_my_stack (); /* Get the correct function stack */
-
- /* Don't push this function on the function stack... :-) */
- FUNC_ENTER_NOAPI_NOFUNC_NOFS(H5FS_print);
-
- /* Sanity check */
- assert(fstack);
-
- H5FS_print_stack(fstack, stream);
-
- FUNC_LEAVE_NOAPI_NOFS(SUCCEED);
-} /* end H5FS_print() */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5FS_push
- *
- * Purpose: Pushes a new record onto function stack for the current
- * thread.
- *
- * Return: Non-negative on success/Negative on failure
- *
- * Programmer: Quincey Koziol
- * Thursday, February 6, 2003
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-herr_t
-H5FS_push(const char *func_name)
-{
- H5FS_t *fstack = H5FS_get_my_stack ();
-
- /* Don't push this function on the function stack... :-) */
- FUNC_ENTER_NOAPI_NOFUNC_NOFS(H5FS_push);
-
- /* Sanity check */
- assert (fstack);
- assert (func_name);
-
- /*
- * Push the function if there's room. Otherwise just increment count
- */
- if (fstack->nused<H5FS_NSLOTS)
- fstack->slot[fstack->nused] = func_name;
- fstack->nused++;
-
- FUNC_LEAVE_NOAPI_NOFS(SUCCEED);
-} /* end H5FS_push() */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5FS_pop
- *
- * Purpose: Pops a record off function stack for the current thread.
- *
- * Return: Non-negative on success/Negative on failure
- *
- * Programmer: Quincey Koziol
- * Thursday, February 6, 2003
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-herr_t
-H5FS_pop(void)
-{
- H5FS_t *fstack = H5FS_get_my_stack ();
-
- /* Don't push this function on the function stack... :-) */
- FUNC_ENTER_NOAPI_NOFUNC_NOFS(H5FS_pop);
-
- /* Sanity check */
- assert (fstack);
- assert (fstack->nused>0);
-
- /* Pop the function. */
- fstack->nused--;
-
- FUNC_LEAVE_NOAPI_NOFS(SUCCEED);
-} /* end H5FS_pop() */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5FS_copy_stack
- *
- * Purpose: Makes a copy of the current stack
- *
- * Return: Non-negative on success/Negative on failure
- *
- * Programmer: Quincey Koziol
- * Tuesday, August 9, 2005
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-herr_t
-H5FS_copy_stack(H5FS_t *new_stack)
-{
- H5FS_t *old_stack = H5FS_get_my_stack ();
- unsigned u; /* Local index variable */
-
- /* Don't push this function on the function stack... :-) */
- FUNC_ENTER_NOAPI_NOFUNC_NOFS(H5FS_copy_stack);
-
- /* Sanity check */
- HDassert (old_stack);
-
- /* Copy old stack to new one, duplicating the strings */
- for(u = 0; u < old_stack->nused; u++)
- new_stack->slot[u] = H5MM_strdup(old_stack->slot[u]);
- new_stack->nused = old_stack->nused;
-
- FUNC_LEAVE_NOAPI_NOFS(SUCCEED);
-} /* end H5FS_copy_stack() */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5FS_close_stack
- *
- * Purpose: Closes a copy of a stack
- *
- * Return: Non-negative on success/Negative on failure
- *
- * Programmer: Quincey Koziol
- * Tuesday, August 9, 2005
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-herr_t
-H5FS_close_stack(H5FS_t *stack)
-{
- unsigned u; /* Local index variable */
-
- /* Don't push this function on the function stack... :-) */
- FUNC_ENTER_NOAPI_NOFUNC_NOFS(H5FS_close_stack);
-
- /* Sanity check */
- HDassert (stack);
-
- /* Free strings on stack */
- for(u = 0; u < stack->nused; u++)
- stack->slot[u] = H5MM_xfree((void *)stack->slot[u]);
-
- FUNC_LEAVE_NOAPI_NOFS(SUCCEED);
-} /* end H5FS_close_stack() */
-
-#endif /* H5_HAVE_FUNCSTACK */
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