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Fixed formatting

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This commit is contained in:
Alexey Romanov
2010-11-12 10:30:21 +03:00
parent 24b26465b2
commit 5ba980d799
1 changed files with 200 additions and 197 deletions
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367
c_src/sqlite3_drv.c
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@@ -6,26 +6,26 @@
#endif
static ErlDrvEntry basic_driver_entry = {
NULL, /* init */
start, /* startup (defined below) */
stop, /* shutdown (defined below) */
NULL, /* output */
NULL, /* ready_input */
NULL, /* ready_output */
"sqlite3_drv", /* the name of the driver */
NULL, /* finish */
NULL, /* handle */
control, /* control */
NULL, /* timeout */
NULL, /* outputv (defined below) */
ready_async, /* ready_async */
NULL, /* flush */
NULL, /* call */
NULL, /* event */
ERL_DRV_EXTENDED_MARKER, /* ERL_DRV_EXTENDED_MARKER */
ERL_DRV_EXTENDED_MAJOR_VERSION, /* ERL_DRV_EXTENDED_MAJOR_VERSION */
ERL_DRV_EXTENDED_MAJOR_VERSION, /* ERL_DRV_EXTENDED_MINOR_VERSION */
ERL_DRV_FLAG_USE_PORT_LOCKING /* ERL_DRV_FLAGs */
NULL, /* init */
start, /* startup (defined below) */
stop, /* shutdown (defined below) */
NULL, /* output */
NULL, /* ready_input */
NULL, /* ready_output */
"sqlite3_drv", /* the name of the driver */
NULL, /* finish */
NULL, /* handle */
control, /* control */
NULL, /* timeout */
NULL, /* outputv */
ready_async, /* ready_async (defined below) */
NULL, /* flush */
NULL, /* call */
NULL, /* event */
ERL_DRV_EXTENDED_MARKER, /* ERL_DRV_EXTENDED_MARKER */
ERL_DRV_EXTENDED_MAJOR_VERSION, /* ERL_DRV_EXTENDED_MAJOR_VERSION */
ERL_DRV_EXTENDED_MAJOR_VERSION, /* ERL_DRV_EXTENDED_MINOR_VERSION */
ERL_DRV_FLAG_USE_PORT_LOCKING /* ERL_DRV_FLAGs */
};
DRIVER_INIT(basic_driver) {
@@ -42,20 +42,21 @@ static ErlDrvData start(ErlDrvPort port, char* cmd) {
struct sqlite3 *db = 0;
int status = 0;
retval->log = fopen ("/tmp/erlang-sqlite3-drv.log", "a+");
retval->log = fopen("/tmp/erlang-sqlite3-drv.log", "a+");
if (!retval->log) {
fprintf (stderr, "Can't create log file\n");
fprintf(stderr, "Can't create log file\n");
}
fprintf (retval->log, "--- Start erlang-sqlite3 driver\nCommand line: [%s]\n", cmd);
fprintf(retval->log,
"--- Start erlang-sqlite3 driver\nCommand line: [%s]\n", cmd);
const char *db_name = strstr (cmd, " ");
const char *db_name = strstr(cmd, " ");
if (!db_name) {
fprintf (retval->log, "ERROR: DB name should be passed at command line\n");
fprintf(retval->log,
"ERROR: DB name should be passed at command line\n");
db_name = DB_PATH;
} else {
++db_name;
++db_name; // move to first character after ' '
}
// Create and open the database
@@ -63,7 +64,8 @@ static ErlDrvData start(ErlDrvPort port, char* cmd) {
status = sqlite3_errcode(db);
if (status != SQLITE_OK) {
fprintf(retval->log, "ERROR: Unable to open file: %s because %s\n\n", db_name, sqlite3_errmsg(db));
fprintf(retval->log, "ERROR: Unable to open file: %s because %s\n\n",
db_name, sqlite3_errmsg(db));
} else {
fprintf(retval->log, "Opened file %s\n", db_name);
}
@@ -73,19 +75,18 @@ static ErlDrvData start(ErlDrvPort port, char* cmd) {
retval->db = db;
retval->key = 42; //FIXME: Just a magic number, make real key
retval->atom_error = driver_mk_atom ("error");
retval->atom_columns = driver_mk_atom ("columns");
retval->atom_rows = driver_mk_atom ("rows");
retval->atom_null = driver_mk_atom ("null");
retval->atom_id = driver_mk_atom ("id");
retval->atom_ok = driver_mk_atom ("ok");
retval->atom_unknown_cmd = driver_mk_atom ("unknown_command");
retval->atom_error = driver_mk_atom("error");
retval->atom_columns = driver_mk_atom("columns");
retval->atom_rows = driver_mk_atom("rows");
retval->atom_null = driver_mk_atom("null");
retval->atom_id = driver_mk_atom("id");
retval->atom_ok = driver_mk_atom("ok");
retval->atom_unknown_cmd = driver_mk_atom("unknown_command");
fflush (retval->log);
fflush(retval->log);
return (ErlDrvData) retval;
}
// Driver Stop
static void stop(ErlDrvData handle) {
sqlite3_drv_t* driver_data = (sqlite3_drv_t*) handle;
@@ -99,43 +100,43 @@ static void stop(ErlDrvData handle) {
// Handle input from Erlang VM
static int control(ErlDrvData drv_data, unsigned int command, char *buf,
int len, char **rbuf, int rlen) {
int len, char **rbuf, int rlen) {
sqlite3_drv_t* driver_data = (sqlite3_drv_t*) drv_data;
switch(command) {
case CMD_SQL_EXEC:
sql_exec(driver_data, buf, len);
break;
default:
unknown(driver_data, buf, len);
switch (command) {
case CMD_SQL_EXEC:
sql_exec(driver_data, buf, len);
break;
default:
unknown(driver_data, buf, len);
}
return 0;
}
static inline int return_error(sqlite3_drv_t *drv, const char *error, ErlDrvTermData **spec, int *terms_count) {
*spec = (ErlDrvTermData *)calloc(7, sizeof(ErlDrvTermData));
static inline int return_error(sqlite3_drv_t *drv, const char *error,
ErlDrvTermData **spec, int *term_count) {
*spec = (ErlDrvTermData *) calloc(7, sizeof(ErlDrvTermData));
(*spec)[0] = ERL_DRV_ATOM;
(*spec)[1] = drv->atom_error;
(*spec)[2] = ERL_DRV_STRING;
(*spec)[3] = (ErlDrvTermData)error;
(*spec)[3] = (ErlDrvTermData) error;
(*spec)[4] = strlen(error);
(*spec)[5] = ERL_DRV_TUPLE;
(*spec)[6] = 2;
*terms_count = 7;
*term_count = 7;
return 0;
}
static int sql_exec(sqlite3_drv_t *drv, char *command, int command_size) {
int result, next_row;
char *rest = NULL;
sqlite3_stmt *statement;
// fprintf(drv->log, "Preexec: %.*s\n", command_size, command);
// fflush (drv->log);
result = sqlite3_prepare_v2(drv->db, command, command_size, &statement, (const char **)&rest);
if(result != SQLITE_OK) {
// fflush(drv->log);
result = sqlite3_prepare_v2(drv->db, command, command_size, &statement,
(const char **) &rest);
if (result != SQLITE_OK) {
ErlDrvTermData *dataset;
int term_count;
return_error(drv, sqlite3_errmsg(drv->db), &dataset, &term_count);
@@ -143,27 +144,30 @@ static int sql_exec(sqlite3_drv_t *drv, char *command, int command_size) {
return 0;
}
async_sqlite3_command *async_command = (async_sqlite3_command *)calloc(1, sizeof(async_sqlite3_command));
async_sqlite3_command *async_command =
(async_sqlite3_command *) calloc(1, sizeof(async_sqlite3_command));
async_command->driver_data = drv;
async_command->statement = statement;
// fprintf(drv->log, "Driver async: %d %p\n", SQLITE_VERSION_NUMBER, async_command->statement);
// fflush (drv->log);
// fflush(drv->log);
if (sqlite3_threadsafe()) {
drv->async_handle = driver_async(drv->port, &drv->key, sql_exec_async, async_command, sql_free_async);
drv->async_handle =
driver_async(drv->port, &drv->key, sql_exec_async,
async_command, sql_free_async);
} else {
sql_exec_async(async_command);
ready_async((ErlDrvData)drv, (ErlDrvThreadData)async_command);
ready_async((ErlDrvData) drv, (ErlDrvThreadData) async_command);
sql_free_async(async_command);
}
return 0;
}
static void sql_free_async(void *_async_command)
{
static void sql_free_async(void *_async_command) {
int i;
async_sqlite3_command *async_command = (async_sqlite3_command *)_async_command;
async_sqlite3_command *async_command =
(async_sqlite3_command *) _async_command;
free(async_command->dataset);
async_command->driver_data->async_handle = 0;
@@ -172,7 +176,7 @@ static void sql_free_async(void *_async_command)
for (i = 0; i < async_command->binaries_count; i++) {
driver_free_binary(async_command->binaries[i]);
}
if(async_command->binaries) {
if (async_command->binaries) {
free(async_command->binaries);
}
if (async_command->statement) {
@@ -181,9 +185,9 @@ static void sql_free_async(void *_async_command)
free(async_command);
}
static void sql_exec_async(void *_async_command) {
async_sqlite3_command *async_command = (async_sqlite3_command *)_async_command;
async_sqlite3_command *async_command =
(async_sqlite3_command *) _async_command;
ErlDrvTermData *dataset = async_command->dataset;
int term_count = async_command->term_count;
int row_count = async_command->row_count;
@@ -200,7 +204,6 @@ static void sql_exec_async(void *_async_command) {
int binaries_count = 0;
int i;
column_count = sqlite3_column_count(statement);
dataset = NULL;
@@ -211,84 +214,86 @@ static void sql_exec_async(void *_async_command) {
if (column_count > 0) {
int base = term_count;
term_count += 2 + column_count*3 + 1 + 2 + 2 + 2;
term_count += 2 + column_count * 3 + 1 + 2 + 2 + 2;
dataset = realloc(dataset, sizeof(*dataset) * term_count);
dataset[base] = ERL_DRV_ATOM;
dataset[base + 1] = drv->atom_columns;
for (i = 0; i < column_count; i++) {
char *column_name = (char *)sqlite3_column_name(statement, i);
char *column_name = (char *) sqlite3_column_name(statement, i);
// fprintf(drv->log, "Column: %s\n", column_name);
// fflush (drv->log);
// fflush(drv->log);
dataset[base + 2 + (i*3)] = ERL_DRV_STRING;
dataset[base + 2 + (i*3) + 1] = (ErlDrvTermData) column_name;
dataset[base + 2 + (i*3) + 2] = strlen (column_name);
dataset[base + 2 + (i * 3)] = ERL_DRV_STRING;
dataset[base + 2 + (i * 3) + 1] = (ErlDrvTermData) column_name;
dataset[base + 2 + (i * 3) + 2] = strlen(column_name);
}
dataset[base + 2 + column_count*3 + 0] = ERL_DRV_NIL;
dataset[base + 2 + column_count*3 + 1] = ERL_DRV_LIST;
dataset[base + 2 + column_count*3 + 2] = column_count + 1;
dataset[base + 2 + column_count*3 + 3] = ERL_DRV_TUPLE;
dataset[base + 2 + column_count*3 + 4] = 2;
dataset[base + 2 + column_count * 3 + 0] = ERL_DRV_NIL;
dataset[base + 2 + column_count * 3 + 1] = ERL_DRV_LIST;
dataset[base + 2 + column_count * 3 + 2] = column_count + 1;
dataset[base + 2 + column_count * 3 + 3] = ERL_DRV_TUPLE;
dataset[base + 2 + column_count * 3 + 4] = 2;
dataset[base + 2 + column_count*3 + 5] = ERL_DRV_ATOM;
dataset[base + 2 + column_count*3 + 6] = drv->atom_rows;
dataset[base + 2 + column_count * 3 + 5] = ERL_DRV_ATOM;
dataset[base + 2 + column_count * 3 + 6] = drv->atom_rows;
}
// fprintf(drv->log, "Exec: %s\n", sqlite3_sql(statement));
// fflush (drv->log);
// fflush(drv->log);
while ((next_row = sqlite3_step(statement)) == SQLITE_ROW) {
for (i = 0; i < column_count; i++) {
// fprintf(drv->log, "Column %d type: %d\n", i, sqlite3_column_type(statement, i));
// fflush (drv->log);
// fflush(drv->log);
switch (sqlite3_column_type(statement, i)) {
case SQLITE_INTEGER: {
ErlDrvSInt64 *int64_ptr = malloc(sizeof(ErlDrvSInt64));
*int64_ptr = (ErlDrvSInt64) sqlite3_column_int64(statement, i);
ptrs = add_to_ptr_list(ptrs, int64_ptr);
case SQLITE_INTEGER: {
ErlDrvSInt64 *int64_ptr = malloc(sizeof(ErlDrvSInt64));
*int64_ptr = (ErlDrvSInt64) sqlite3_column_int64(statement, i);
ptrs = add_to_ptr_list(ptrs, int64_ptr);
term_count += 2;
dataset = realloc(dataset, sizeof(*dataset) * term_count);
dataset[term_count - 2] = ERL_DRV_INT64;
dataset[term_count - 1] = (ErlDrvTermData) int64_ptr;
break;
}
case SQLITE_FLOAT: {
double *float_ptr = malloc(sizeof(double));
*float_ptr = sqlite3_column_double(statement, i);
ptrs = add_to_ptr_list(ptrs, float_ptr);
term_count += 2;
dataset = realloc(dataset, sizeof(*dataset) * term_count);
dataset[term_count - 2] = ERL_DRV_INT64;
dataset[term_count - 1] = (ErlDrvTermData) int64_ptr;
break;
}
case SQLITE_FLOAT: {
double *float_ptr = malloc(sizeof(double));
*float_ptr = sqlite3_column_double(statement, i);
ptrs = add_to_ptr_list(ptrs, float_ptr);
term_count += 2;
dataset = realloc(dataset, sizeof(*dataset) * term_count);
dataset[term_count - 2] = ERL_DRV_FLOAT;
dataset[term_count - 1] = (ErlDrvTermData) float_ptr;
break;
}
case SQLITE_BLOB:
case SQLITE_TEXT: {
int bytes = sqlite3_column_bytes(statement, i);
binaries_count++;
binaries = realloc(binaries, sizeof(*binaries) * binaries_count);
binaries[binaries_count - 1] = driver_alloc_binary(bytes);
binaries[binaries_count - 1]->orig_size = bytes;
memcpy(binaries[binaries_count - 1]->orig_bytes, sqlite3_column_blob(statement, i), bytes);
term_count += 2;
dataset = realloc(dataset, sizeof(*dataset) * term_count);
dataset[term_count - 2] = ERL_DRV_FLOAT;
dataset[term_count - 1] = (ErlDrvTermData) float_ptr;
break;
}
case SQLITE_BLOB:
case SQLITE_TEXT: {
int bytes = sqlite3_column_bytes(statement, i);
binaries_count++;
binaries =
realloc(binaries, sizeof(*binaries) * binaries_count);
binaries[binaries_count - 1] = driver_alloc_binary(bytes);
binaries[binaries_count - 1]->orig_size = bytes;
memcpy(binaries[binaries_count - 1]->orig_bytes,
sqlite3_column_blob(statement, i), bytes);
term_count += 4;
dataset = realloc(dataset, sizeof(*dataset) * term_count);
dataset[term_count - 4] = ERL_DRV_BINARY;
dataset[term_count - 3] = (ErlDrvTermData)binaries[binaries_count - 1];
dataset[term_count - 2] = bytes;
dataset[term_count - 1] = 0;
break;
}
case SQLITE_NULL: {
term_count += 2;
dataset = realloc (dataset, sizeof (*dataset) * term_count);
dataset[term_count - 2] = ERL_DRV_ATOM;
dataset[term_count - 1] = drv->atom_null;
break;
}
term_count += 4;
dataset = realloc(dataset, sizeof(*dataset) * term_count);
dataset[term_count - 4] = ERL_DRV_BINARY;
dataset[term_count - 3] =
(ErlDrvTermData) binaries[binaries_count - 1];
dataset[term_count - 2] = bytes;
dataset[term_count - 1] = 0;
break;
}
case SQLITE_NULL: {
term_count += 2;
dataset = realloc(dataset, sizeof(*dataset) * term_count);
dataset[term_count - 2] = ERL_DRV_ATOM;
dataset[term_count - 1] = drv->atom_null;
break;
}
}
}
term_count += 2;
@@ -303,17 +308,17 @@ static void sql_exec_async(void *_async_command) {
async_command->binaries = binaries;
async_command->binaries_count = binaries_count;
if (next_row == SQLITE_BUSY) {
return_error(drv, "SQLite3 database is busy", &async_command->dataset, &async_command->term_count);
return_error(drv, "SQLite3 database is busy", &async_command->dataset,
&async_command->term_count);
return;
}
if (next_row != SQLITE_DONE) {
return_error(drv, sqlite3_errmsg(drv->db), &async_command->dataset, &async_command->term_count);
return_error(drv, sqlite3_errmsg(drv->db), &async_command->dataset,
&async_command->term_count);
return;
}
if (column_count > 0) {
term_count += 3;
dataset = realloc(dataset, sizeof(*dataset) * term_count);
@@ -326,15 +331,12 @@ static void sql_exec_async(void *_async_command) {
dataset[term_count - 2] = ERL_DRV_TUPLE;
dataset[term_count - 1] = 2;
term_count += 3;
dataset = realloc(dataset, sizeof(*dataset) * term_count);
dataset[term_count - 3] = ERL_DRV_NIL;
dataset[term_count - 2] = ERL_DRV_LIST;
dataset[term_count - 1] = 3;
} else if (strcasestr(sqlite3_sql(statement), "INSERT")) {
} else if (strcasestr(sqlite3_sql(statement), "INSERT")) {
sqlite3_int64 rowid = sqlite3_last_insert_rowid(drv->db);
term_count += 6;
dataset = realloc(dataset, sizeof(*dataset) * term_count);
@@ -360,32 +362,33 @@ static void sql_exec_async(void *_async_command) {
dataset[term_count - 2] = ERL_DRV_TUPLE;
dataset[term_count - 1] = 2;
async_command->dataset = dataset;
async_command->term_count = term_count;
// fprintf(drv->log, "Total term count: %p %d, rows count: %dx%d\n", statement, term_count, column_count, row_count);
// fflush (drv->log);
// fflush(drv->log);
}
static void ready_async(ErlDrvData drv_data, ErlDrvThreadData thread_data)
{
async_sqlite3_command *async_command = (async_sqlite3_command *)thread_data;
static void ready_async(ErlDrvData drv_data, ErlDrvThreadData thread_data) {
async_sqlite3_command *async_command =
(async_sqlite3_command *) thread_data;
sqlite3_drv_t *drv = async_command->driver_data;
int res = driver_output_term(drv->port, async_command->dataset, async_command->term_count);
int res = driver_output_term(drv->port,
async_command->dataset,
async_command->term_count);
// fprintf(drv->log, "Total term count: %p %d, rows count: %d (%d)\n", async_command->statement, async_command->term_count, async_command->row_count, res);
// fflush (drv->log);
// fflush(drv->log);
sql_free_async(async_command);
}
// Unknown Command
static int unknown(sqlite3_drv_t *drv, char *command, int command_size) {
// Return {error, unknown_command}
ErlDrvTermData spec[] = {ERL_DRV_ATOM, drv->atom_error,
ERL_DRV_ATOM, drv->atom_unknown_cmd,
ERL_DRV_TUPLE, 2};
ErlDrvTermData spec[] = {
ERL_DRV_ATOM, drv->atom_error,
ERL_DRV_ATOM, drv->atom_unknown_cmd,
ERL_DRV_TUPLE, 2
};
return driver_output_term(drv->port, spec, sizeof(spec) / sizeof(spec[0]));
}
@@ -395,51 +398,51 @@ static int print_dataset(ErlDrvTermData *dataset, int term_count) {
int i;
printf("dataset (%d terms):\n", term_count);
for (i = 1; i < term_count; i++) {
dataset++;
newData = *dataset;
switch (lastData) {
case ERL_DRV_INT:
printf("int: %ld\n", (ErlDrvSInt) newData);
break;
case ERL_DRV_INT64:
printf("int64: %p:%lld\n", (void *) newData, *(ErlDrvSInt64 *) newData);
break;
case ERL_DRV_FLOAT:
printf("int64: %p:%f\n", (void *) newData, *(double *) newData);
break;
// case ERL_DRV_TUPLE:
// printf("tuple of size %d\n", (int) newData);
// break;
// case ERL_DRV_LIST:
// printf("list of length %d\n", (int) newData);
// break;
default:
break;
}
lastData = newData;
dataset++;
newData = *dataset;
switch (lastData) {
case ERL_DRV_INT:
printf("int: %ld\n", (ErlDrvSInt) newData);
break;
case ERL_DRV_INT64:
printf("int64: %p:%lld\n", (void *) newData,
*(ErlDrvSInt64 *) newData);
break;
case ERL_DRV_FLOAT:
printf("int64: %p:%f\n", (void *) newData, *(double *) newData);
break;
// case ERL_DRV_TUPLE:
// printf("tuple of size %d\n", (int) newData);
// break;
// case ERL_DRV_LIST:
// printf("list of length %d\n", (int) newData);
// break;
default:
break;
}
lastData = newData;
}
return 0;
}
static inline ptr_list *add_to_ptr_list(ptr_list *list, void *value_ptr) {
ptr_list* new_node = malloc(sizeof(ptr_list));
new_node->head = value_ptr;
new_node->tail = NULL;
if (list) {
list->tail = new_node;
return list;
}
else {
return new_node;
}
ptr_list* new_node = malloc(sizeof(ptr_list));
new_node->head = value_ptr;
new_node->tail = NULL;
if (list) {
list->tail = new_node;
return list;
} else {
return new_node;
}
}
static inline void free_ptr_list(ptr_list *list) {
ptr_list* tail;
while (list) {
tail = list->tail;
free(list->head);
free(list);
list = tail;
}
ptr_list* tail;
while (list) {
tail = list->tail;
free(list->head);
free(list);
list = tail;
}
}