#include <assert.h>
#include <xbt/log.h>
+#include <xbt/string.hpp>
-#include "simix/smx_private.h"
+#include "src/simix/smx_private.h"
-#include "mc_smx.h"
+#include "src/mc/mc_smx.h"
#include "ModelChecker.hpp"
+using simgrid::mc::remote;
+
extern "C" {
static
void MC_smx_process_info_clear(mc_smx_process_info_t p)
{
p->hostname = NULL;
-
- xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
free(p->name);
- mmalloc_set_current_heap(heap);
-
p->name = NULL;
}
* @param remote_swag Address of the process SWAG in the remote list
*/
static void MC_process_refresh_simix_process_list(
- mc_process_t process,
+ simgrid::mc::Process* process,
xbt_dynar_t target, xbt_swag_t remote_swag)
{
// swag = REMOTE(*simix_global->process_list)
s_xbt_swag_t swag;
- MC_process_read(process, MC_PROCESS_NO_FLAG, &swag, remote_swag, sizeof(swag),
- MC_PROCESS_INDEX_ANY);
+ process->read_bytes(&swag, sizeof(swag), remote(remote_swag));
smx_process_t p;
xbt_dynar_reset(target);
info.address = p;
info.name = NULL;
info.hostname = NULL;
- MC_process_read(process, MC_PROCESS_NO_FLAG,
- &info.copy, p, sizeof(info.copy), MC_PROCESS_INDEX_ANY);
+ process->read_bytes(&info.copy, sizeof(info.copy), remote(p));
xbt_dynar_push(target, &info);
// Lookup next process address:
assert(i == swag.count);
}
-void MC_process_smx_refresh(mc_process_t process)
+void MC_process_smx_refresh(simgrid::mc::Process* process)
{
+ xbt_assert(mc_mode == MC_MODE_SERVER);
if (process->cache_flags & MC_PROCESS_CACHE_FLAG_SIMIX_PROCESSES)
return;
- xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
-
// TODO, avoid to reload `&simix_global`, `simix_global`, `*simix_global`
// simix_global_p = REMOTE(simix_global);
smx_global_t simix_global_p;
- MC_process_read_variable(process, "simix_global", &simix_global_p, sizeof(simix_global_p));
+ process->read_variable("simix_global", &simix_global_p, sizeof(simix_global_p));
// simix_global = REMOTE(*simix_global)
s_smx_global_t simix_global;
- MC_process_read(process, MC_PROCESS_NO_FLAG, &simix_global, simix_global_p, sizeof(simix_global),
- MC_PROCESS_INDEX_ANY);
+ process->read_bytes(&simix_global, sizeof(simix_global),
+ remote(simix_global_p));
MC_process_refresh_simix_process_list(
process, process->smx_process_infos, simix_global.process_list);
process, process->smx_old_process_infos, simix_global.process_to_destroy);
process->cache_flags |= MC_PROCESS_CACHE_FLAG_SIMIX_PROCESSES;
- mmalloc_set_current_heap(heap);
}
/** Get the issuer of a simcall (`req->issuer`)
*/
smx_process_t MC_smx_simcall_get_issuer(smx_simcall_t req)
{
- if (MC_process_is_self(&mc_model_checker->process()))
+ if (mc_mode == MC_MODE_CLIENT)
return req->issuer;
MC_process_smx_refresh(&mc_model_checker->process());
{
if (!process_remote_address)
return NULL;
- if (MC_process_is_self(&mc_model_checker->process()))
+ if (mc_mode == MC_MODE_CLIENT)
return process_remote_address;
mc_smx_process_info_t process_info = MC_smx_resolve_process_info(process_remote_address);
mc_smx_process_info_t MC_smx_resolve_process_info(smx_process_t process_remote_address)
{
- if (MC_process_is_self(&mc_model_checker->process()))
+ if (mc_mode == MC_MODE_CLIENT)
xbt_die("No process_info for local process is not enabled.");
unsigned index;
const char* MC_smx_process_get_host_name(smx_process_t p)
{
- if (MC_process_is_self(&mc_model_checker->process()))
- return SIMIX_host_get_name(p->smx_host);
-
- mc_process_t process = &mc_model_checker->process();
-
- // Currently, smx_host_t = xbt_dictelm_t.
- // TODO, add an static_assert on this if switching to C++
- // The host name is host->key and the host->key_len==strlen(host->key).
- s_xbt_dictelm_t host_copy;
+ if (mc_mode == MC_MODE_CLIENT)
+ return SIMIX_host_get_name(p->host);
+
+ simgrid::mc::Process* process = &mc_model_checker->process();
+
+ /* Horrible hack to find the offset of the id in the simgrid::Host.
+
+ Offsetof is not supported for non-POD types but this should
+ work in pratice for the targets currently supported by the MC
+ as long as we do not add funny features to the Host class
+ (such as virtual base).
+
+ We are using a (C++11) unrestricted union in order to avoid
+ any construction/destruction of the simgrid::Host.
+ */
+ union fake_host {
+ simgrid::Host host;
+ fake_host() {}
+ ~fake_host() {}
+ };
+ fake_host foo;
+ const size_t offset = (char*) &foo.host.getName() - (char*) &foo.host;
+
+ // Read the simgrid::xbt::string in the MCed process:
mc_smx_process_info_t info = MC_smx_process_get_info(p);
- if (!info->hostname) {
-
- // Read the hostname from the MCed process:
- MC_process_read_simple(process, &host_copy, p->smx_host, sizeof(host_copy));
- int len = host_copy.key_len + 1;
- char hostname[len];
- MC_process_read_simple(process, hostname, host_copy.key, len);
- info->hostname = mc_model_checker->get_host_name(hostname);
- }
+ simgrid::xbt::string_data remote_string;
+ auto remote_string_address = remote(
+ (simgrid::xbt::string_data*) ((char*) p->host + offset));
+ process->read_bytes(&remote_string, sizeof(remote_string), remote_string_address);
+ char hostname[remote_string.len];
+ process->read_bytes(hostname, remote_string.len + 1, remote(remote_string.data));
+ info->hostname = mc_model_checker->get_host_name(hostname);
return info->hostname;
}
const char* MC_smx_process_get_name(smx_process_t p)
{
- mc_process_t process = &mc_model_checker->process();
- if (MC_process_is_self(process))
+ simgrid::mc::Process* process = &mc_model_checker->process();
+ if (mc_mode == MC_MODE_CLIENT)
return p->name;
if (!p->name)
return NULL;
mc_smx_process_info_t info = MC_smx_process_get_info(p);
if (!info->name) {
- xbt_mheap_t heap = mmalloc_set_current_heap(mc_heap);
- info->name = MC_process_read_string(process, p->name);
- mmalloc_set_current_heap(heap);
+ info->name = process->read_string(p->name);
}
return info->name;
}
+#ifdef HAVE_SMPI
int MC_smpi_process_count(void)
{
- if (MC_process_is_self(&mc_model_checker->process()))
+ if (mc_mode == MC_MODE_CLIENT)
return smpi_process_count();
else {
int res;
- MC_process_read_variable(&mc_model_checker->process(), "process_count",
+ mc_model_checker->process().read_variable("process_count",
&res, sizeof(res));
return res;
}
}
+#endif
unsigned long MC_smx_get_maxpid(void)
{
unsigned long maxpid;
- MC_process_read_variable(&mc_model_checker->process(), "simix_process_maxpid",
+ mc_model_checker->process().read_variable("simix_process_maxpid",
&maxpid, sizeof(maxpid));
return maxpid;
}
