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#include "perf_taler_mintdb_interpreter.h"
#include "perf_taler_mintdb_init.h"
#include <gauger.h>
/**
* Finds the first command in cmd with the name search
*
* \return the index of the first command with name search
* GNUNET_SYSERR if none found
*/
static int
cmd_find(const struct PERF_TALER_MINTDB_CMD *cmd, const char *search)
{
int i;
for (i=0; CMD_END != cmd[i].command; i++)
if (0 == strcmp (cmd[i].name, search))
return i;
return GNUNET_SYSERR;
}
// Initialization of a command array
static int
cmd_init(struct PERF_TALER_MINTDB_CMD cmd[])
{
int i = 0;
while (CMD_END != cmd[i].command)
{
switch (cmd[i].command)
{
case CMD_SAVE_ARRAY:
// Initialization is done differently depending of the type saved
switch (cmd[i].details.save_array.saved_type)
{
case DEPOSIT:
cmd[i].details.save_array.saved_data.deposit =
GNUNET_malloc(cmd[i].details.save_array.nb*
sizeof(*cmd[i].details.save_array.saved_data.deposit));
break;
case TIME:
cmd[i].details.save_array.saved_data.time =
GNUNET_malloc(cmd[i].details.save_array.nb*
sizeof(*cmd[i].details.save_array.saved_data.time));
default:
break;
}
break;
case CMD_LOAD_ARRAY:
cmd[i].details.load_array.permutation =
GNUNET_CRYPTO_random_permute(
GNUNET_CRYPTO_QUALITY_WEAK,
cmd[i].details.load_array.nb);
break;
default:
break;
}
i++;
}
return GNUNET_OK;
}
/**
* Free the memory of the command chain
*/
static int
cmd_clean(struct PERF_TALER_MINTDB_CMD cmd[])
{
int i = 0;
while (cmd[i].command != CMD_END)
{
switch (cmd[i].command)
{
case CMD_SAVE_ARRAY:
{
int j;
switch (cmd[i].details.save_array.saved_type)
{
case DEPOSIT:
for (j = 0; j < cmd[i].details.save_array.nb; j++)
{
free_deposit(cmd[i].details.save_array.saved_data.deposit[j]);
cmd[i].details.save_array.saved_data.deposit[j] = NULL;
}
GNUNET_free(cmd[i].details.save_array.saved_data.deposit);
cmd[i].details.save_array.saved_data.deposit = NULL;
break;
case TIME:
GNUNET_free(cmd[i].details.save_array.saved_data.time);
break;
default:
break;
}
}
case CMD_INSERT_DEPOSIT:
free_deposit(cmd[i].exposed.deposit);
break;
case CMD_LOAD_ARRAY:
GNUNET_free(cmd[i].details.load_array.permutation);
break;
default:
break;
}
i++;
}
return GNUNET_OK;
}
/**
*
*/
static int
interprete(struct TALER_MINTDB_Plugin *db_plugin,
struct TALER_MINTDB_Session*session,
struct PERF_TALER_MINTDB_CMD cmd[])
{
int i=0;
while (0){
switch (cmd[i].command)
{
case CMD_END:
return GNUNET_YES;
case CMD_LOOP:
cmd[i].details.loop.curr_iteration++;
break;
case CMD_END_LOOP:
{
int jump = cmd_find(cmd, cmd[i].details.end_loop.loop_start);
zf (cmd[jump].details.loop.max_iterations > cmd[jump].details.loop.curr_iteration)
{
i = jump -1;
}else{
int j;
// For each command in the loop
for (j = 0; j <i; j++){
// If the exposed variable has not been copied
if (!cmd[j].exposed_used)
{
cmd[j].exposed_used = 0;
// It is freed
switch (cmd[j].command){
case CMD_INSERT_DEPOSIT:
free_deposit(cmd[j].exposed.deposit);
cmd[j].exposed.deposit = NULL;
break;
default:
break;
}
}
}
}
}
break;
case CMD_GET_TIME:
clock_gettime(CLOCK_MONOTONIC, &cmd[i].exposed.time);
break;
case CMD_GAUGER:
{
int start_index = cmd_find(cmd, cmd[i].details.gauger.start_time);
int stop_index = cmd_find(cmd, cmd[i].details.gauger.stop_time );
struct timespec start= cmd[start_index].exposed.time;
struct timespec stop = cmd[stop_index].exposed.time;
unsigned long elapsed_ms = (start.tv_sec - stop.tv_sec)*1000 + (start.tv_nsec - stop.tv_nsec)/1000000;
GAUGER("MINTDB", cmd[i].details.gauger.description, elapsed_ms, "milliseconds");
}
break;
case CMD_START_TRANSACTION:
db_plugin->start(db_plugin->cls, session);
break;
case CMD_COMMIT_TRANSACTION:
db_plugin->commit(db_plugin->cls, session);
break;
case CMD_INSERT_DEPOSIT:
{
struct TALER_MINTDB_Deposit *deposit = init_deposit(0);
db_plugin->insert_deposit(db_plugin->cls, session, deposit);
cmd[i].exposed.deposit = deposit;
}
break;
case CMD_GET_DEPOSIT:
{
int source_index = cmd_find(cmd, cmd[i].details.get_deposit.source); // Find the source location
struct TALER_MINTDB_Deposit *deposit = cmd[source_index].exposed.deposit; // Get the deposit from the source
db_plugin->have_deposit(db_plugin->cls, session, deposit);
}
break;
case CMD_SAVE_ARRAY:
{
// Array initialization on first loop iteration
if (cmd[cmd_find(cmd, cmd[i].details.save_array.loop)].details.loop.curr_iteration == 0)
{
cmd[i].details.save_array.index = 0;
}
int loop_index = cmd_find(cmd, cmd[i].details.save_array.loop);
int proba = cmd[loop_index].details.loop.max_iterations / cmd[i].details.save_array.nb;
int rnd = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, proba);
// If there is a lesser or equal number of iteration next than room remain in the array
if ((cmd[loop_index].details.loop.max_iterations - cmd[loop_index].details.loop.curr_iteration <=
cmd[i].details.save_array.nb - cmd[i].details.save_array.index) ||
(rnd == 0 && cmd[i].details.save_array.index < cmd[i].details.save_array.nb))
{
// We automaticly save the whatever we need to
switch (cmd[i].details.save_array.saved_type){
case DEPOSIT:
cmd[i].details.save_array.saved_data.deposit[cmd[i].details.save_array.index] =
cmd[cmd_find(cmd, cmd[i].details.save_array.saved)].exposed.deposit;
break;
case TIME:
cmd[i].details.save_array.saved_data.deposit[cmd[i].details.save_array.index] =
cmd[cmd_find(cmd, cmd[i].details.save_array.saved)].exposed.deposit;
break;
}
cmd[i].details.save_array.index++;
}
}
break;
case CMD_LOAD_ARRAY:
{
int loop_index = cmd_find(cmd, cmd[i].details.load_array.loop);
int save_index = cmd_find(cmd, cmd[i].details.load_array.saved);
switch (cmd[i].details.load_array.loaded_type){
case DEPOSIT:
cmd[i].exposed.deposit = cmd[save_index].details.save_array.saved_data.deposit[
cmd[i].details.load_array.permutation[
cmd[loop_index].details.loop.curr_iteration
]
];
break;
case TIME:
cmd[i].exposed.time = cmd[save_index].details.save_array.saved_data.time[
cmd[i].details.load_array.permutation[
cmd[loop_index].details.loop.curr_iteration
]
];
break;
default:
break;
}
}
}
i++;
}
return GNUNET_OK;
}
/**
* Runs the commands given in @a cmd, working with
* the database referenced by @a db_plugin
*/
int
PERF_TALER_MINTDB_interprete(struct TALER_MINTDB_Plugin *db_plugin,
struct TALER_MINTDB_Session *session,
struct PERF_TALER_MINTDB_CMD cmd[])
{
// Initializing commands
cmd_init(cmd);
// Running the interpreter
interprete(db_plugin, session, cmd);
// Cleaning the memory
cmd_clean(cmd);
return GNUNET_YES;
}
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