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Commit e81a9cae authored by Shane Snyder's avatar Shane Snyder
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autconf/runtime changes for configuring mmap code

parent bb25083b
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Showing with 263 additions and 202 deletions
darshan-runtime/configure
View file @ e81a9cae
......@@ -684,15 +684,16 @@ ac_subst_files=''
ac_user_opts='
enable_option_checking
with_zlib
enable_cuserid
enable_ld_preload
enable_cuserid
enable_group_readable_logs
enable_bgq_mod
enable_mmap_logs
with_mem_align
with_log_path_by_env
with_log_hints
with_log_path
with_jobid_env
enable_bgq_mod
with_mod_mem
'
ac_precious_vars='build_alias
......@@ -1313,10 +1314,12 @@ Optional Features:
--disable-option-checking ignore unrecognized --enable/--with options
--disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
--enable-FEATURE[=ARG] include FEATURE [ARG=yes]
--disable-cuserid Disables attempted use of cuserid() at run time
--disable-ld-preload Disables support for LD_PRELOAD library
--enable-group-readable-logs Set log files to be group readable
--disable-cuserid Disables attempted use of cuserid() at run time
--enable-group-readable-logs
Set log files to be group readable
--disable-bgq-mod Disables compilation and use of BG/Q module (for BG/Q systems)
--enable-mmmap-logs Enables ability to mmap I/O data to log file
Optional Packages:
--with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
......@@ -1325,13 +1328,16 @@ Optional Packages:
/usr/local or /usr if not found in /usr/local
--without-zlib to disable zlib usage completely
--with-mem-align=<num> Memory alignment in bytes
--with-log-path-by-env=<env var list> Comma separated list of environment variables to check for log path location before --with-log-path path
--with-log-hints=<hint1=x;hint2=y> Semicolon-separated list of MPI-IO hints for log file write
--with-log-path-by-env=<env var list>
Comma separated list of environment variables to check for
log path location before --with-log-path path
--with-log-hints=<hint1=x;hint2=y>
Semicolon-separated list of MPI-IO hints for log file write
--with-log-path=<path> Location to store log files at run time
--with-jobid-env=<name> Name of environment variable that stores the jobid
(specify "NONE" if no appropriate environment variable is available:
Darshan will use rank 0's pid instead)
--with-mod-mem=<num> Maximum amount of memory (in MiB) for each Darshan module
(specify "NONE" if no appropriate environment variable
is available: Darshan will use rank 0's pid instead)
--with-mod-mem=<num> Maximum amount of memory (in MiB) for each Darshan module
Some influential environment variables:
CC C compiler command
......@@ -3528,21 +3534,21 @@ fi
# Check whether --enable-cuserid was given.
if test "${enable_cuserid+set}" = set; then :
enableval=$enable_cuserid; if test "x$enableval" = "xno" ; then
$as_echo "#define DARSHAN_DISABLE_CUSERID 1" >>confdefs.h
,
# Check whether --enable-ld-preload was given.
if test "${enable_ld_preload+set}" = set; then :
enableval=$enable_ld_preload; if test "x$enableval" = "xno" ; then
DISABLE_LDPRELOAD="1"
fi
fi
# Check whether --enable-ld-preload was given.
if test "${enable_ld_preload+set}" = set; then :
enableval=$enable_ld_preload; if test "x$enableval" = "xno" ; then
DISABLE_LDPRELOAD="1"
# Check whether --enable-cuserid was given.
if test "${enable_cuserid+set}" = set; then :
enableval=$enable_cuserid; if test "x$enableval" = "xno" ; then
$as_echo "#define __DARSHAN_DISABLE_CUSERID 1" >>confdefs.h
fi
fi
......@@ -3559,6 +3565,26 @@ fi
fi
# Check whether --enable-bgq_mod was given.
if test "${enable_bgq_mod+set}" = set; then :
enableval=$enable_bgq_mod;
else
enable_bgq_mod=check
fi
# Check whether --enable-mmap-logs was given.
if test "${enable_mmap_logs+set}" = set; then :
enableval=$enable_mmap_logs; if test "x$enableval" = "xyes" ; then
$as_echo "#define __DARSHAN_ENABLE_MMAP_LOGS 1" >>confdefs.h
fi
fi
# Check whether --with-mem-align was given.
if test "${with_mem_align+set}" = set; then :
......@@ -3648,6 +3674,54 @@ _ACEOF
fi
# Check whether --with-mod-mem was given.
if test "${with_mod_mem+set}" = set; then :
withval=$with_mod_mem; if test x$withval = xyes; then
as_fn_error $? "--with-mod-mem must be given a number" "$LINENO" 5
else
cat >>confdefs.h <<_ACEOF
#define __DARSHAN_MOD_MEM_MAX ${withval}
_ACEOF
fi
fi
if test x$enable_bgq_mod != xno; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for BG/Q environment" >&5
$as_echo_n "checking for BG/Q environment... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#ifndef __bgq__
#error __bgq__ not set
#endif
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
DARSHAN_USE_BGQ=1
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
if test "x$enable_bgq_mod" = xyes; then :
as_fn_error $? "BG/Q module enabled in non-BG/Q environment" "$LINENO" 5
fi
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
if test x$GOT_ALIGNMENT != x1; then
as_fn_error $? "must provide --with-mem-align=<num> argument to configure." "$LINENO" 5
fi
......@@ -4239,63 +4313,6 @@ $as_echo "no" >&6; }
MPICH_LIB_OLD=0
fi
# check to see whether the bgq instrumentation module should be built
# Check whether --enable-bgq_mod was given.
if test "${enable_bgq_mod+set}" = set; then :
enableval=$enable_bgq_mod;
else
enable_bgq_mod=check
fi
if test x$enable_bgq_mod != xno; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for BG/Q environment" >&5
$as_echo_n "checking for BG/Q environment... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#ifndef __bgq__
#error __bgq__ not set
#endif
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
DARSHAN_USE_BGQ=1
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
if test "x$enable_bgq_mod" = xyes; then :
as_fn_error $? "BG/Q module enabled in non-BG/Q environment" "$LINENO" 5
fi
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
# Check whether --with-mod-mem was given.
if test "${with_mod_mem+set}" = set; then :
withval=$with_mod_mem; if test x$withval = xyes; then
as_fn_error $? "--with-mod-mem must be given a number" "$LINENO" 5
else
cat >>confdefs.h <<_ACEOF
#define __DARSHAN_MOD_MEM_MAX ${withval}
_ACEOF
fi
fi
DARSHAN_VERSION="3.0.0-pre3"
......@@ -4305,7 +4322,6 @@ DARSHAN_VERSION="3.0.0-pre3"
ac_config_files="$ac_config_files Makefile darshan-mk-log-dirs.pl darshan-gen-cc.pl darshan-gen-cxx.pl darshan-gen-fortran.pl darshan-base-ld-opts darshan-config share/craype-1.x/darshan-module share/craype-2.x/darshan-module lib/pkgconfig/darshan-runtime.pc share/mpi-profile/darshan-cc.conf share/mpi-profile/darshan-cxx.conf share/mpi-profile/darshan-f.conf share/mpi-profile/darshan-bg-cc.conf share/mpi-profile/darshan-bg-cxx.conf share/mpi-profile/darshan-bg-f.conf"
cat >confcache <<\_ACEOF
......
darshan-runtime/configure.in
View file @ e81a9cae
......@@ -24,27 +24,42 @@ AC_TRY_COMPILE([#include <mpi.h>], [int ret = MPI_Init(0, (void*)0)],
dnl runtime libraries require zlib
CHECK_ZLIB
AC_ARG_ENABLE(cuserid,
[ --disable-cuserid Disables attempted use of cuserid() at run time],
AC_ARG_ENABLE(ld-preload,
[ --disable-ld-preload Disables support for LD_PRELOAD library],
[if test "x$enableval" = "xno" ; then
AC_DEFINE(DARSHAN_DISABLE_CUSERID, 1, Define if cuserid() should be disabled),
DISABLE_LDPRELOAD="1"
fi]
,)
AC_ARG_ENABLE(ld-preload,
[ --disable-ld-preload Disables support for LD_PRELOAD library],
AC_ARG_ENABLE(cuserid,
[ --disable-cuserid Disables attempted use of cuserid() at run time],
[if test "x$enableval" = "xno" ; then
DISABLE_LDPRELOAD="1"
AC_DEFINE(__DARSHAN_DISABLE_CUSERID, 1, Define if cuserid() should be disabled)
fi]
,)
AC_ARG_ENABLE(group-readable-logs,
[ --enable-group-readable-logs Set log files to be group readable],
[ --enable-group-readable-logs
Set log files to be group readable],
[if test "x$enableval" = "xyes" ; then
AC_DEFINE(__DARSHAN_GROUP_READABLE_LOGS, 1, Define if Darshan should set log files to be group readable)
fi]
,)
AC_ARG_ENABLE(
[bgq_mod],
[ --disable-bgq-mod Disables compilation and use of BG/Q module (for BG/Q systems)],
[],
[enable_bgq_mod=check]
)
AC_ARG_ENABLE(mmap-logs,
[ --enable-mmmap-logs Enables ability to mmap I/O data to log file],
[if test "x$enableval" = "xyes" ; then
AC_DEFINE(__DARSHAN_ENABLE_MMAP_LOGS, 1, Define if Darshan should mmap data structures to log file)
fi]
,)
AC_ARG_WITH(mem-align,
[ --with-mem-align=<num> Memory alignment in bytes],
if test x$withval = xyes; then
......@@ -56,7 +71,9 @@ AC_ARG_WITH(mem-align,
)
AC_ARG_WITH(log-path-by-env,
[ --with-log-path-by-env=<env var list> Comma separated list of environment variables to check for log path location before --with-log-path path],
[ --with-log-path-by-env=<env var list>
Comma separated list of environment variables to check for
log path location before --with-log-path path],
if test x$withval = xyes; then
AC_MSG_ERROR(--with-log-path-by-env must be given at least one variable name)
else
......@@ -67,7 +84,8 @@ AC_ARG_WITH(log-path-by-env,
)
AC_ARG_WITH(log-hints,
[ --with-log-hints=<hint1=x;hint2=y> Semicolon-separated list of MPI-IO hints for log file write],
[ --with-log-hints=<hint1=x;hint2=y>
Semicolon-separated list of MPI-IO hints for log file write],
if test x$withval = xyes; then
AC_MSG_ERROR(--with-log-hints must be given an argument)
else
......@@ -90,8 +108,8 @@ AC_ARG_WITH(log-path,
AC_ARG_WITH(jobid-env,
[ --with-jobid-env=<name> Name of environment variable that stores the jobid
(specify "NONE" if no appropriate environment variable is available:
Darshan will use rank 0's pid instead)],
(specify "NONE" if no appropriate environment variable
is available: Darshan will use rank 0's pid instead)],
if test x$withval = xyes; then
AC_MSG_ERROR(--with-jobid-env must be given a name)
else
......@@ -101,6 +119,30 @@ AC_ARG_WITH(jobid-env,
fi
)
AC_ARG_WITH(mod-mem,
[ --with-mod-mem=<num> Maximum amount of memory (in MiB) for each Darshan module],
if test x$withval = xyes; then
AC_MSG_ERROR(--with-mod-mem must be given a number)
else
AC_DEFINE_UNQUOTED(__DARSHAN_MOD_MEM_MAX, ${withval}, Maximum memory (in MiB) for each Darshan module)
fi
)
if test x$enable_bgq_mod != xno; then
AC_MSG_CHECKING(for BG/Q environment)
AC_TRY_COMPILE([
#ifndef __bgq__
#error __bgq__ not set
#endif
], [],
AC_MSG_RESULT(yes)
DARSHAN_USE_BGQ=1,
AC_MSG_RESULT(no)
AS_IF([test "x$enable_bgq_mod" = xyes],
AC_MSG_ERROR(BG/Q module enabled in non-BG/Q environment),
[]))
fi
if test x$GOT_ALIGNMENT != x1; then
AC_MSG_ERROR(must provide --with-mem-align=<num> argument to configure.)
fi
......@@ -278,39 +320,7 @@ AS_IF([$CC -show foo.c -o foo |grep lmpich >& /dev/null],
AC_MSG_RESULT(no)
MPICH_LIB_OLD=0)
# check to see whether the bgq instrumentation module should be built
AC_ARG_ENABLE(
[bgq_mod],
[ --disable-bgq-mod Disables compilation and use of BG/Q module (for BG/Q systems)],
[],
[enable_bgq_mod=check]
)
if test x$enable_bgq_mod != xno; then
AC_MSG_CHECKING(for BG/Q environment)
AC_TRY_COMPILE([
#ifndef __bgq__
#error __bgq__ not set
#endif
], [],
AC_MSG_RESULT(yes)
DARSHAN_USE_BGQ=1,
AC_MSG_RESULT(no)
AS_IF([test "x$enable_bgq_mod" = xyes],
AC_MSG_ERROR(BG/Q module enabled in non-BG/Q environment),
[]))
fi
AC_ARG_WITH(mod-mem,
[ --with-mod-mem=<num> Maximum amount of memory (in MiB) for each Darshan module],
if test x$withval = xyes; then
AC_MSG_ERROR(--with-mod-mem must be given a number)
else
AC_DEFINE_UNQUOTED(__DARSHAN_MOD_MEM_MAX, ${withval}, Maximum memory (in MiB) for each Darshan module)
fi
)
DARSHAN_VERSION="AC_PACKAGE_VERSION"
AC_SUBST(darshan_lib_path)
AC_SUBST(darshan_share_path)
AC_SUBST(LDFLAGS)
......
darshan-runtime/darshan-core.h
View file @ e81a9cae
......@@ -30,6 +30,9 @@
/* Environment variable to override memory per module */
#define DARSHAN_MOD_MEM_OVERRIDE "DARSHAN_MODMEM"
/* Environment variable to override default mmap log path */
#define DARSHAN_MMAP_LOG_PATH_OVERRIDE "DARSHAN_MMAP_LOGPATH"
/* Maximum amount of memory per instrumentation module in MiB */
#ifdef __DARSHAN_MOD_MEM_MAX
#define DARSHAN_MOD_MEM_MAX (__DARSHAN_MOD_MEM_MAX * 1024 * 1024)
......@@ -37,6 +40,9 @@
#define DARSHAN_MOD_MEM_MAX (2 * 1024 * 1024) /* 2 MiB default */
#endif
/* default path for storing mmap log files is '/tmp' */
#define DARSHAN_DEF_MMAP_LOG_PATH "/tmp"
#define DARSHAN_RECORD_BUF_SIZE (1024 * 100) /* store 1024 records, each of at most 100 bytes */
/* Default runtime compression buffer size */
......
darshan-runtime/darshan-runtime-config.h.in
View file @ e81a9cae
......@@ -3,9 +3,6 @@
/* Define if building universal (internal helper macro) */
#undef AC_APPLE_UNIVERSAL_BUILD
/* Define if cuserid() should be disabled */
#undef DARSHAN_DISABLE_CUSERID
/* Define if struct aiocb64 type is defined */
#undef HAVE_AIOCB64
......@@ -87,6 +84,12 @@
# endif
#endif
/* Define if cuserid() should be disabled */
#undef __DARSHAN_DISABLE_CUSERID
/* Define if Darshan should mmap data structures to log file */
#undef __DARSHAN_ENABLE_MMAP_LOGS
/* Define if Darshan should set log files to be group readable */
#undef __DARSHAN_GROUP_READABLE_LOGS
......
darshan-runtime/lib/darshan-core.c
View file @ e81a9cae
......@@ -98,6 +98,8 @@ static void darshan_add_record_hashref(
darshan_record_id id, struct darshan_core_record_ref **ref);
static void darshan_block_size_from_path(
const char *path, int *block_size);
static void darshan_get_user_name(
char *user);
static void darshan_get_logfile_name(
char* logfile_name, int jobid, struct tm* start_tm);
static void darshan_get_shared_records(
......@@ -127,6 +129,7 @@ void darshan_core_initialize(int argc, char **argv)
int mmap_fd;
int mmap_size;
int sys_page_size;
char cuser[L_cuserid] = {0};
char *envstr;
char *jobid_str;
int jobid;
......@@ -197,6 +200,7 @@ void darshan_core_initialize(int argc, char **argv)
memset(init_core, 0, sizeof(*init_core));
init_core->wtime_offset = DARSHAN_MPI_CALL(PMPI_Wtime)();
#ifdef __DARSHAN_ENABLE_MMAP_LOGS
sys_page_size = sysconf(_SC_PAGESIZE);
assert(sys_page_size > 0);
......@@ -205,11 +209,21 @@ void darshan_core_initialize(int argc, char **argv)
if(mmap_size % sys_page_size)
mmap_size = ((mmap_size / sys_page_size) + 1) * sys_page_size;
char *mmap_log_dir;
envstr = getenv(DARSHAN_MMAP_LOG_PATH_OVERRIDE);
if(envstr)
mmap_log_dir = envstr;
else
mmap_log_dir = DARSHAN_DEF_MMAP_LOG_PATH;
darshan_get_user_name(cuser);
/* construct a unique temporary log file name for this process
* to write mmap log data to
*/
snprintf(init_core->mmap_log_name, PATH_MAX, "/tmp/darshan_job%d.%d",
jobid, my_rank);
snprintf(init_core->mmap_log_name, PATH_MAX,
"/%s/%s_%s_id%d_mmap-log-%d.darshan",
mmap_log_dir, cuser, __progname, jobid, my_rank);
/* create the temporary mmapped darshan log */
mmap_fd = open(init_core->mmap_log_name, O_CREAT|O_RDWR|O_EXCL , 0644);
......@@ -282,6 +296,9 @@ void darshan_core_initialize(int argc, char **argv)
/* collect information about command line and mounted file systems */
darshan_get_exe_and_mounts(init_core, argc, argv);
#else
#error "Error: non-mmap code path not ready."
#endif
/* bootstrap any modules with static initialization routines */
i = 0;
......@@ -360,8 +377,9 @@ void darshan_core_shutdown()
/* XXX just copy mmap files somewhere else to avoid corruption */
DARSHAN_MPI_CALL(PMPI_Barrier)(MPI_COMM_WORLD);
if(my_rank == 0)
system("cp /tmp/darshan* ~/Desktop");
char cp_cmd[500] = {0};
sprintf(cp_cmd, "cp %s ~/Desktop", final_core->mmap_log_name);
system(cp_cmd);
DARSHAN_MPI_CALL(PMPI_Barrier)(MPI_COMM_WORLD);
memcpy(&out_job, final_core->log_job_p, sizeof(struct darshan_job));
......@@ -1003,66 +1021,59 @@ static void darshan_get_exe_and_mounts(struct darshan_core_runtime *core,
return;
}
static void darshan_add_record_hashref(struct darshan_core_runtime *core,
char *name, darshan_record_id id, struct darshan_core_record_ref **ref)
static void darshan_block_size_from_path(const char *path, int *block_size)
{
int record_size = sizeof(darshan_record_id) + strlen(name) + 1;
if((record_size + core->log_hdr_p->rec_map.len) > DARSHAN_RECORD_BUF_SIZE)
return;
int i;
*block_size = -1;
*ref = malloc(sizeof(**ref));
if(*ref)
for(i=0; i<mnt_data_count; i++)
{
memset(*ref, 0, sizeof(**ref));
#if 0
if(!mmap)
{
ref->rec.name = malloc(strlen(name) + 1);
}
else
#endif
if(!(strncmp(mnt_data_array[i].path, path, strlen(mnt_data_array[i].path))))
{
/* store the rec id and full file path in record hash buffer */
void *tmp_p = (char *)core->log_rec_p + core->log_hdr_p->rec_map.len;
*(darshan_record_id *)tmp_p = id;
/* set the name pointer for this record to point to the
* appropriate location in the record hash buffer
*/
tmp_p = (char *)tmp_p + sizeof(darshan_record_id);
(*ref)->name = (char *)tmp_p;
*block_size = mnt_data_array[i].block_size;
return;
}
/* set record ref fields */
(*ref)->id = id;
if((*ref)->name)
strcpy((*ref)->name, name);
/* TODO: look at HASH_ADD_KEYPTR, use same strategy (big contig pool) for non-mmap darshan */
HASH_ADD(hlink, core->rec_hash, id, sizeof(darshan_record_id), (*ref));
core->rec_hash_cnt++;
core->log_hdr_p->rec_map.len += record_size;
}
return;
}
static void darshan_block_size_from_path(const char *path, int *block_size)
static void darshan_get_user_name(char *cuser)
{
int i;
*block_size = -1;
char* logname_string;
for(i=0; i<mnt_data_count; i++)
/* get the username for this job. In order we will try each of the
* following until one of them succeeds:
*
* - cuserid()
* - getenv("LOGNAME")
* - snprintf(..., geteuid());
*
* Note that we do not use getpwuid() because it generally will not
* work in statically compiled binaries.
*/
#ifndef __DARSHAN_DISABLE_CUSERID
cuserid(cuser);
#endif
/* if cuserid() didn't work, then check the environment */
if(strcmp(cuser, "") == 0)
{
if(!(strncmp(mnt_data_array[i].path, path, strlen(mnt_data_array[i].path))))
logname_string = getenv("LOGNAME");
if(logname_string)
{
*block_size = mnt_data_array[i].block_size;
return;
strncpy(cuser, logname_string, (L_cuserid-1));
}
}
/* if cuserid() and environment both fail, then fall back to uid */
if(strcmp(cuser, "") == 0)
{
uid_t uid = geteuid();
snprintf(cuser, L_cuserid, "%u", uid);
}
return;
}
......@@ -1071,7 +1082,6 @@ static void darshan_get_logfile_name(char* logfile_name, int jobid, struct tm* s
{
char* user_logfile_name;
char* logpath;
char* logname_string;
char* logpath_override = NULL;
#ifdef __DARSHAN_LOG_ENV
char env_check[256];
......@@ -1110,37 +1120,7 @@ static void darshan_get_logfile_name(char* logfile_name, int jobid, struct tm* s
#endif
}
/* get the username for this job. In order we will try each of the
* following until one of them succeeds:
*
* - cuserid()
* - getenv("LOGNAME")
* - snprintf(..., geteuid());
*
* Note that we do not use getpwuid() because it generally will not
* work in statically compiled binaries.
*/
#ifndef DARSHAN_DISABLE_CUSERID
cuserid(cuser);
#endif
/* if cuserid() didn't work, then check the environment */
if(strcmp(cuser, "") == 0)
{
logname_string = getenv("LOGNAME");
if(logname_string)
{
strncpy(cuser, logname_string, (L_cuserid-1));
}
}
/* if cuserid() and environment both fail, then fall back to uid */
if(strcmp(cuser, "") == 0)
{
uid_t uid = geteuid();
snprintf(cuser, sizeof(cuser), "%u", uid);
}
darshan_get_user_name(cuser);
/* generate a random number to help differentiate the log */
hlevel=DARSHAN_MPI_CALL(PMPI_Wtime)() * 1000000;
......@@ -1221,6 +1201,52 @@ static void darshan_get_logfile_name(char* logfile_name, int jobid, struct tm* s
return;
}
static void darshan_add_record_hashref(struct darshan_core_runtime *core,
char *name, darshan_record_id id, struct darshan_core_record_ref **ref)
{
int record_size = sizeof(darshan_record_id) + strlen(name) + 1;
if((record_size + core->log_hdr_p->rec_map.len) > DARSHAN_RECORD_BUF_SIZE)
return;
*ref = malloc(sizeof(**ref));
if(*ref)
{
memset(*ref, 0, sizeof(**ref));
#if 0
if(!mmap)
{
ref->rec.name = malloc(strlen(name) + 1);
}
else
#endif
{
/* store the rec id and full file path in record hash buffer */
void *tmp_p = (char *)core->log_rec_p + core->log_hdr_p->rec_map.len;
*(darshan_record_id *)tmp_p = id;
/* set the name pointer for this record to point to the
* appropriate location in the record hash buffer
*/
tmp_p = (char *)tmp_p + sizeof(darshan_record_id);
(*ref)->name = (char *)tmp_p;
}
/* set record ref fields */
(*ref)->id = id;
if((*ref)->name)
strcpy((*ref)->name, name);
/* TODO: look at HASH_ADD_KEYPTR, use same strategy (big contig pool) for non-mmap darshan */
HASH_ADD(hlink, core->rec_hash, id, sizeof(darshan_record_id), (*ref));
core->rec_hash_cnt++;
core->log_hdr_p->rec_map.len += record_size;
}
return;
}
static void darshan_get_shared_records(struct darshan_core_runtime *core,
darshan_record_id **shared_recs, int *shared_rec_cnt)
{
......
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