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subsurface/core/import-shearwater.c
Berthold Stoeger 138f27f65d Parser: make parser (mostly) reentrant 
Introduce a parser_state structure, which describes (most) of the
global parser state. Create such a structure in the entry routines
to the parser and pass it down to the individual functions. The
parser state is initialized and freed with the init_parser_state()
and free_parser_state() functions.

The main benefits are:
1) Isolation of parser state.
2) Keeping the global name space tidy.
3) Prevent memory leaks which could happen in truncated files by
   freeing all the parser state after parse.

A somewhat controversial point might be that the individual
parsing functions are split in those that need parser-state and
those that don't. This means that there are now two versions of
the MATCH macro, viz. one for the former and one for the latter.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-23 08:06:17 +01:00

342 lines
11 KiB
C
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// SPDX-License-Identifier: GPL-2.0
#ifdef __clang__
// Clang has a bug on zero-initialization of C structs.
#pragma clang diagnostic ignored "-Wmissing-field-initializers"
#endif
#include "ssrf.h"
#include "dive.h"
#include "subsurface-string.h"
#include "parse.h"
#include "divelist.h"
#include "device.h"
#include "membuffer.h"
#include "gettext.h"
static int shearwater_cylinders(void *param, int columns, char **data, char **column)
{
UNUSED(columns);
UNUSED(column);
struct parser_state *state = (struct parser_state *)param;
int o2 = lrint(strtod_flags(data[0], NULL, 0) * 1000);
int he = lrint(strtod_flags(data[1], NULL, 0) * 1000);
/* Shearwater allows entering only 99%, not 100%
* so assume 99% to be pure oxygen */
if (o2 == 990 && he == 0)
o2 = 1000;
cylinder_start(state);
state->cur_dive->cylinder[state->cur_cylinder_index].gasmix.o2.permille = o2;
state->cur_dive->cylinder[state->cur_cylinder_index].gasmix.he.permille = he;
cylinder_end(state);
return 0;
}
static int shearwater_changes(void *param, int columns, char **data, char **column)
{
UNUSED(columns);
UNUSED(column);
struct parser_state *state = (struct parser_state *)param;
if (columns != 3) {
return 1;
}
if (!data[0] || !data[1] || !data[2]) {
return 2;
}
int o2 = lrint(strtod_flags(data[1], NULL, 0) * 1000);
int he = lrint(strtod_flags(data[2], NULL, 0) * 1000);
/* Shearwater allows entering only 99%, not 100%
* so assume 99% to be pure oxygen */
if (o2 == 990 && he == 0)
o2 = 1000;
// Find the cylinder index
int i;
bool found = false;
for (i = 0; i < state->cur_cylinder_index; ++i) {
if (state->cur_dive->cylinder[i].gasmix.o2.permille == o2 && state->cur_dive->cylinder[i].gasmix.he.permille == he) {
found = true;
break;
}
}
if (!found) {
// Cylinder not found, creating a new one
cylinder_start(state);
state->cur_dive->cylinder[state->cur_cylinder_index].gasmix.o2.permille = o2;
state->cur_dive->cylinder[state->cur_cylinder_index].gasmix.he.permille = he;
cylinder_end(state);
i = state->cur_cylinder_index;
}
add_gas_switch_event(state->cur_dive, get_dc(state), atoi(data[0]), i);
return 0;
}
static int shearwater_profile_sample(void *param, int columns, char **data, char **column)
{
UNUSED(columns);
UNUSED(column);
struct parser_state *state = (struct parser_state *)param;
int d6, d7;
sample_start(state);
if (data[0])
state->cur_sample->time.seconds = atoi(data[0]);
if (data[1])
state->cur_sample->depth.mm = state->metric ? lrint(strtod_flags(data[1], NULL, 0) * 1000) : feet_to_mm(strtod_flags(data[1], NULL, 0));
if (data[2])
state->cur_sample->temperature.mkelvin = state->metric ? C_to_mkelvin(strtod_flags(data[2], NULL, 0)) : F_to_mkelvin(strtod_flags(data[2], NULL, 0));
if (data[3]) {
state->cur_sample->setpoint.mbar = lrint(strtod_flags(data[3], NULL, 0) * 1000);
}
if (data[4])
state->cur_sample->ndl.seconds = atoi(data[4]) * 60;
if (data[5])
state->cur_sample->cns = atoi(data[5]);
if (data[6]) {
d6 = atoi(data[6]);
if (d6 > 0) {
state->cur_sample->stopdepth.mm = state->metric ? d6 * 1000 : feet_to_mm(d6);
state->cur_sample->in_deco = 1;
} else if (data[7]) {
d7 = atoi(data[7]);
if (d7 > 0) {
state->cur_sample->stopdepth.mm = state->metric ? d7 * 1000 : feet_to_mm(d7);
if (data[8])
state->cur_sample->stoptime.seconds = atoi(data[8]) * 60;
state->cur_sample->in_deco = 1;
} else {
state->cur_sample->in_deco = 0;
}
} else {
state->cur_sample->in_deco = 0;
}
}
/* We don't actually have data[3], but it should appear in the
* SQL query at some point.
if (data[3])
state->cur_sample->pressure[0].mbar = state->metric ? atoi(data[3]) * 1000 : psi_to_mbar(atoi(data[3]));
*/
sample_end(state);
return 0;
}
static int shearwater_ai_profile_sample(void *param, int columns, char **data, char **column)
{
UNUSED(columns);
UNUSED(column);
struct parser_state *state = (struct parser_state *)param;
int d6, d9;
sample_start(state);
if (data[0])
state->cur_sample->time.seconds = atoi(data[0]);
if (data[1])
state->cur_sample->depth.mm = state->metric ? lrint(strtod_flags(data[1], NULL, 0) * 1000) : feet_to_mm(strtod_flags(data[1], NULL, 0));
if (data[2])
state->cur_sample->temperature.mkelvin = state->metric ? C_to_mkelvin(strtod_flags(data[2], NULL, 0)) : F_to_mkelvin(strtod_flags(data[2], NULL, 0));
if (data[3]) {
state->cur_sample->setpoint.mbar = lrint(strtod_flags(data[3], NULL, 0) * 1000);
}
if (data[4])
state->cur_sample->ndl.seconds = atoi(data[4]) * 60;
if (data[5])
state->cur_sample->cns = atoi(data[5]);
if (data[6]) {
d6 = atoi(data[6]);
if (d6 > 0) {
state->cur_sample->stopdepth.mm = state->metric ? d6 * 1000 : feet_to_mm(d6);
state->cur_sample->in_deco = 1;
} else if (data[9]) {
d9 = atoi(data[9]);
if (d9 > 0) {
state->cur_sample->stopdepth.mm = state->metric ? d9 * 1000 : feet_to_mm(d9);
if (data[10])
state->cur_sample->stoptime.seconds = atoi(data[10]) * 60;
state->cur_sample->in_deco = 1;
} else {
state->cur_sample->in_deco = 0;
}
} else {
state->cur_sample->in_deco = 0;
}
}
/* Weird unit conversion but seems to produce correct results.
* Also missing values seems to be reported as a 4092 (564 bar) */
if (data[7] && atoi(data[7]) != 4092) {
state->cur_sample->pressure[0].mbar = psi_to_mbar(atoi(data[7])) * 2;
}
if (data[8] && atoi(data[8]) != 4092)
state->cur_sample->pressure[1].mbar = psi_to_mbar(atoi(data[8])) * 2;
sample_end(state);
return 0;
}
static int shearwater_mode(void *param, int columns, char **data, char **column)
{
UNUSED(columns);
UNUSED(column);
struct parser_state *state = (struct parser_state *)param;
if (data[0])
state->cur_dive->dc.divemode = atoi(data[0]) == 0 ? CCR : OC;
return 0;
}
static int shearwater_dive(void *param, int columns, char **data, char **column)
{
UNUSED(columns);
UNUSED(column);
int retval = 0;
struct parser_state *state = (struct parser_state *)param;
sqlite3 *handle = state->sql_handle;
char *err = NULL;
char get_profile_template[] = "select currentTime,currentDepth,waterTemp,averagePPO2,currentNdl,CNSPercent,decoCeiling,firstStopDepth,firstStopTime from dive_log_records where diveLogId=%d";
char get_profile_template_ai[] = "select currentTime,currentDepth,waterTemp,averagePPO2,currentNdl,CNSPercent,decoCeiling,aiSensor0_PressurePSI,aiSensor1_PressurePSI,firstStopDepth,firstStopTime from dive_log_records where diveLogId = %d";
char get_cylinder_template[] = "select fractionO2,fractionHe from dive_log_records where diveLogId = %d group by fractionO2,fractionHe";
char get_changes_template[] = "select a.currentTime,a.fractionO2,a.fractionHe from dive_log_records as a,dive_log_records as b where (a.id - 1) = b.id and (a.fractionO2 != b.fractionO2 or a.fractionHe != b.fractionHe) and a.diveLogId=b.divelogId and a.diveLogId = %d";
char get_mode_template[] = "select distinct currentCircuitSetting from dive_log_records where diveLogId = %d";
char get_buffer[1024];
dive_start(state);
state->cur_dive->number = atoi(data[0]);
state->cur_dive->when = (time_t)(atol(data[1]));
int dive_id = atoi(data[11]);
if (data[2])
add_dive_site(data[2], state->cur_dive, state);
if (data[3])
utf8_string(data[3], &state->cur_dive->buddy);
if (data[4])
utf8_string(data[4], &state->cur_dive->notes);
state->metric = atoi(data[5]) == 1 ? 0 : 1;
/* TODO: verify that metric calculation is correct */
if (data[6])
state->cur_dive->dc.maxdepth.mm = state->metric ? lrint(strtod_flags(data[6], NULL, 0) * 1000) : feet_to_mm(strtod_flags(data[6], NULL, 0));
if (data[7])
state->cur_dive->dc.duration.seconds = atoi(data[7]) * 60;
if (data[8])
state->cur_dive->dc.surface_pressure.mbar = atoi(data[8]);
/*
* TODO: the deviceid hash should be calculated here.
*/
settings_start(state);
dc_settings_start(state);
if (data[9])
utf8_string(data[9], &state->cur_settings.dc.serial_nr);
if (data[10]) {
switch (atoi(data[10])) {
case 2:
state->cur_settings.dc.model = strdup("Shearwater Petrel/Perdix");
break;
case 4:
state->cur_settings.dc.model = strdup("Shearwater Predator");
break;
default:
state->cur_settings.dc.model = strdup("Shearwater import");
break;
}
}
state->cur_settings.dc.deviceid = atoi(data[9]);
dc_settings_end(state);
settings_end(state);
if (data[10]) {
switch (atoi(data[10])) {
case 2:
state->cur_dive->dc.model = strdup("Shearwater Petrel/Perdix");
break;
case 4:
state->cur_dive->dc.model = strdup("Shearwater Predator");
break;
default:
state->cur_dive->dc.model = strdup("Shearwater import");
break;
}
}
if (data[11]) {
snprintf(get_buffer, sizeof(get_buffer) - 1, get_mode_template, dive_id);
retval = sqlite3_exec(handle, get_buffer, &shearwater_mode, state, &err);
if (retval != SQLITE_OK) {
fprintf(stderr, "%s", "Database query shearwater_mode failed.\n");
return 1;
}
}
snprintf(get_buffer, sizeof(get_buffer) - 1, get_cylinder_template, dive_id);
retval = sqlite3_exec(handle, get_buffer, &shearwater_cylinders, state, &err);
if (retval != SQLITE_OK) {
fprintf(stderr, "%s", "Database query shearwater_cylinders failed.\n");
return 1;
}
snprintf(get_buffer, sizeof(get_buffer) - 1, get_changes_template, dive_id);
retval = sqlite3_exec(handle, get_buffer, &shearwater_changes, state, &err);
if (retval != SQLITE_OK) {
fprintf(stderr, "%s", "Database query shearwater_changes failed.\n");
return 1;
}
snprintf(get_buffer, sizeof(get_buffer) - 1, get_profile_template_ai, dive_id);
retval = sqlite3_exec(handle, get_buffer, &shearwater_ai_profile_sample, state, &err);
if (retval != SQLITE_OK) {
snprintf(get_buffer, sizeof(get_buffer) - 1, get_profile_template, dive_id);
retval = sqlite3_exec(handle, get_buffer, &shearwater_profile_sample, state, &err);
if (retval != SQLITE_OK) {
fprintf(stderr, "%s", "Database query shearwater_profile_sample failed.\n");
return 1;
}
}
dive_end(state);
return SQLITE_OK;
}
int parse_shearwater_buffer(sqlite3 *handle, const char *url, const char *buffer, int size,
struct dive_table *table)
{
UNUSED(buffer);
UNUSED(size);
int retval;
char *err = NULL;
struct parser_state state;
init_parser_state(&state);
state.target_table = table;
state.sql_handle = handle;
char get_dives[] = "select l.number,timestamp,location||' / '||site,buddy,notes,imperialUnits,maxDepth,maxTime,startSurfacePressure,computerSerial,computerModel,i.diveId FROM dive_info AS i JOIN dive_logs AS l ON i.diveId=l.diveId";
retval = sqlite3_exec(handle, get_dives, &shearwater_dive, &state, &err);
free_parser_state(&state);
if (retval != SQLITE_OK) {
fprintf(stderr, "Database query failed '%s'.\n", url);
return 1;
}
return 0;
}
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