2022-02-04 13:41:36 +00:00
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#include <hamlib/config.h>
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2021-11-28 18:52:29 +00:00
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#include <hamlib/rig.h>
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#include "misc.h"
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#include "snapshot_data.h"
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#include "hamlibdatetime.h"
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#include "cJSON.h"
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#define MAX_VFO_COUNT 4
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#define SPECTRUM_MODE_FIXED "FIXED"
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#define SPECTRUM_MODE_CENTER "CENTER"
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2021-11-30 07:25:51 +00:00
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static int snapshot_serialize_rig(cJSON *rig_node, RIG *rig)
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{
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cJSON *node;
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// TODO: need to assign rig an ID, e.g. from command line
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node = cJSON_AddStringToObject(rig_node, "id", "rig_id");
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if (node == NULL)
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{
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goto error;
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}
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// TODO: what kind of status should this reflect?
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node = cJSON_AddStringToObject(rig_node, "status", rig->state.comm_state ? "OK" : "CLOSED");
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if (node == NULL)
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{
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goto error;
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}
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// TODO: need to store last error code
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node = cJSON_AddStringToObject(rig_node, "errorMsg", "");
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if (node == NULL)
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{
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goto error;
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}
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node = cJSON_AddStringToObject(rig_node, "name", rig->caps->model_name);
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if (node == NULL)
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{
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goto error;
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}
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node = cJSON_AddBoolToObject(rig_node, "split", rig->state.cache.split == RIG_SPLIT_ON ? 1 : 0);
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if (node == NULL)
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{
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goto error;
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}
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node = cJSON_AddStringToObject(rig_node, "splitVfo", rig_strvfo(rig->state.cache.split_vfo));
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if (node == NULL)
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{
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goto error;
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}
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node = cJSON_AddBoolToObject(rig_node, "satMode", rig->state.cache.satmode ? 1 : 0);
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if (node == NULL)
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{
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goto error;
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}
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RETURNFUNC(RIG_OK);
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error:
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RETURNFUNC(-RIG_EINTERNAL);
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}
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2021-11-28 18:52:29 +00:00
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static int snapshot_serialize_vfo(cJSON *vfo_node, RIG *rig, vfo_t vfo)
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{
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freq_t freq;
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int freq_ms, mode_ms, width_ms;
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rmode_t mode;
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pbwidth_t width;
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ptt_t ptt;
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split_t split;
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vfo_t split_vfo;
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int result;
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int is_rx, is_tx;
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cJSON *node;
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// TODO: This data should match rig_get_info command response
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node = cJSON_AddStringToObject(vfo_node, "name", rig_strvfo(vfo));
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if (node == NULL)
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{
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goto error;
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}
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result = rig_get_cache(rig, vfo, &freq, &freq_ms, &mode, &mode_ms, &width, &width_ms);
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if (result == RIG_OK)
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{
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node = cJSON_AddNumberToObject(vfo_node, "freq", freq);
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if (node == NULL)
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{
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goto error;
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}
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node = cJSON_AddStringToObject(vfo_node, "mode", rig_strrmode(mode));
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if (node == NULL)
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{
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goto error;
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}
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node = cJSON_AddNumberToObject(vfo_node, "width", (double) width);
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if (node == NULL)
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{
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goto error;
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}
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}
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ptt = rig->state.cache.ptt;
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node = cJSON_AddBoolToObject(vfo_node, "ptt", ptt == RIG_PTT_OFF ? 0 : 1);
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if (node == NULL)
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{
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goto error;
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}
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split = rig->state.cache.split;
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split_vfo = rig->state.cache.split_vfo;
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is_rx = (split == RIG_SPLIT_OFF && vfo == rig->state.current_vfo) || (split == RIG_SPLIT_ON && vfo != split_vfo);
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node = cJSON_AddBoolToObject(vfo_node, "rx", is_rx);
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if (node == NULL)
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{
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goto error;
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}
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is_tx = (split == RIG_SPLIT_OFF && vfo == rig->state.current_vfo) || (split == RIG_SPLIT_ON && vfo == split_vfo);
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node = cJSON_AddBoolToObject(vfo_node, "tx", is_tx);
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if (node == NULL)
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{
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goto error;
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}
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RETURNFUNC(RIG_OK);
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error:
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RETURNFUNC(-RIG_EINTERNAL);
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}
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static int snapshot_serialize_spectrum(cJSON *spectrum_node, RIG *rig, struct rig_spectrum_line *spectrum_line)
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{
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// Spectrum data is represented as a hexadecimal ASCII string where each data byte is represented as 2 ASCII letters
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2021-11-30 07:25:51 +00:00
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char spectrum_data_string[HAMLIB_MAX_SPECTRUM_DATA * 2];
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2021-11-28 18:52:29 +00:00
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cJSON *node;
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int i;
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struct rig_spectrum_scope *scopes = rig->caps->spectrum_scopes;
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char *name = "?";
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for (i = 0; scopes[i].name != NULL; i++)
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{
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if (scopes[i].id == spectrum_line->id)
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{
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name = scopes[i].name;
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}
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}
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node = cJSON_AddNumberToObject(spectrum_node, "id", spectrum_line->id);
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if (node == NULL)
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{
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goto error;
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}
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node = cJSON_AddStringToObject(spectrum_node, "name", name);
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if (node == NULL)
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{
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goto error;
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}
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node = cJSON_AddStringToObject(spectrum_node, "type",
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spectrum_line->spectrum_mode == RIG_SPECTRUM_MODE_CENTER ?
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SPECTRUM_MODE_CENTER : SPECTRUM_MODE_FIXED);
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if (node == NULL)
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{
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goto error;
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}
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node = cJSON_AddNumberToObject(spectrum_node, "minLevel", spectrum_line->data_level_min);
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if (node == NULL)
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{
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goto error;
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}
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node = cJSON_AddNumberToObject(spectrum_node, "maxLevel", spectrum_line->data_level_max);
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if (node == NULL)
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{
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goto error;
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}
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node = cJSON_AddNumberToObject(spectrum_node, "minStrength", spectrum_line->signal_strength_min);
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if (node == NULL)
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{
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goto error;
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}
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node = cJSON_AddNumberToObject(spectrum_node, "maxStrength", spectrum_line->signal_strength_max);
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if (node == NULL)
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{
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goto error;
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}
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node = cJSON_AddNumberToObject(spectrum_node, "centerFreq", spectrum_line->center_freq);
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if (node == NULL)
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{
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goto error;
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}
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node = cJSON_AddNumberToObject(spectrum_node, "span", spectrum_line->span_freq);
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if (node == NULL)
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{
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goto error;
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}
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node = cJSON_AddNumberToObject(spectrum_node, "lowFreq", spectrum_line->low_edge_freq);
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if (node == NULL)
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{
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goto error;
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}
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node = cJSON_AddNumberToObject(spectrum_node, "highFreq", spectrum_line->high_edge_freq);
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if (node == NULL)
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{
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goto error;
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}
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node = cJSON_AddNumberToObject(spectrum_node, "length", (double) spectrum_line->spectrum_data_length);
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if (node == NULL)
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{
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goto error;
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}
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to_hex(spectrum_line->spectrum_data_length, spectrum_line->spectrum_data,
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sizeof(spectrum_data_string), spectrum_data_string);
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node = cJSON_AddStringToObject(spectrum_node, "data", spectrum_data_string);
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if (node == NULL)
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{
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goto error;
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}
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RETURNFUNC(RIG_OK);
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error:
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RETURNFUNC(-RIG_EINTERNAL);
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}
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int snapshot_serialize(size_t buffer_length, char *buffer, RIG *rig, struct rig_spectrum_line *spectrum_line)
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{
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cJSON *root_node;
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cJSON *rig_node, *vfos_array, *vfo_node, *spectra_array, *spectrum_node;
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cJSON *node;
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cJSON_bool bool_result;
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int vfo_count = 2;
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vfo_t vfos[MAX_VFO_COUNT];
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int result;
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int i;
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vfos[0] = RIG_VFO_A;
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vfos[1] = RIG_VFO_B;
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root_node = cJSON_CreateObject();
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if (root_node == NULL)
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{
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RETURNFUNC(-RIG_EINTERNAL);
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}
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node = cJSON_AddStringToObject(root_node, "app", PACKAGE_NAME);
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if (node == NULL)
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{
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goto error;
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}
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node = cJSON_AddStringToObject(root_node, "version", PACKAGE_VERSION " " HAMLIBDATETIME);
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if (node == NULL)
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{
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goto error;
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}
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node = cJSON_AddNumberToObject(root_node, "seq", rig->state.snapshot_packet_sequence_number);
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if (node == NULL)
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{
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goto error;
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}
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2021-12-20 07:53:21 +00:00
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// TODO: Calculate 32-bit CRC of the entire JSON record replacing the CRC value with 0
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2021-11-28 18:52:29 +00:00
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node = cJSON_AddNumberToObject(root_node, "crc", 0);
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if (node == NULL)
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{
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goto error;
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}
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rig_node = cJSON_CreateObject();
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if (rig_node == NULL)
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{
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goto error;
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}
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2021-11-30 07:25:51 +00:00
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result = snapshot_serialize_rig(rig_node, rig);
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if (result != RIG_OK)
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2021-11-28 18:52:29 +00:00
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{
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2021-11-30 07:25:51 +00:00
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cJSON_Delete(rig_node);
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2021-11-28 18:52:29 +00:00
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goto error;
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}
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2021-11-30 07:25:51 +00:00
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cJSON_AddItemToObject(root_node, "rig", rig_node);
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2021-11-28 18:52:29 +00:00
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vfos_array = cJSON_CreateArray();
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if (vfos_array == NULL)
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{
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goto error;
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}
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for (i = 0; i < vfo_count; i++)
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{
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vfo_node = cJSON_CreateObject();
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result = snapshot_serialize_vfo(vfo_node, rig, vfos[i]);
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if (result != RIG_OK)
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{
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cJSON_Delete(vfo_node);
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goto error;
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}
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cJSON_AddItemToArray(vfos_array, vfo_node);
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}
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cJSON_AddItemToObject(root_node, "vfos", vfos_array);
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if (spectrum_line != NULL)
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{
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spectra_array = cJSON_CreateArray();
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if (spectra_array == NULL)
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{
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goto error;
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}
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spectrum_node = cJSON_CreateObject();
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result = snapshot_serialize_spectrum(spectrum_node, rig, spectrum_line);
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if (result != RIG_OK)
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{
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cJSON_Delete(spectrum_node);
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goto error;
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}
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cJSON_AddItemToArray(spectra_array, spectrum_node);
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cJSON_AddItemToObject(root_node, "spectra", spectra_array);
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}
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bool_result = cJSON_PrintPreallocated(root_node, buffer, (int) buffer_length, 0);
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cJSON_Delete(root_node);
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if (!bool_result)
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{
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RETURNFUNC(-RIG_EINVAL);
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}
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rig->state.snapshot_packet_sequence_number++;
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RETURNFUNC(RIG_OK);
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error:
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cJSON_Delete(root_node);
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RETURNFUNC(-RIG_EINTERNAL);
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}
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