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Recon/FreqMan set limit in load_freqman_file_ex (#1098)

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* changed a hardcoded value by a define, changed the order for the database clean so it happens first, changed load_freqman_file_ex so it can take a max num of freqs as a parameter with a default to FREQMAN_MAX_PER_FILE
* added a swap and a set_db to clear as much as possible before the loading of a category
* added a define for Recon max per files
* remove unneeded comment
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gullradriel 2023-06-03 22:42:34 +02:00 • committed by GitHub
parent 2fd3bf0136
commit f66f438487
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 23 additions and 22 deletions
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34
firmware/application/freqman.cpp
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@ -103,10 +103,13 @@ std::vector<std::string> get_freqman_files() {
};
bool load_freqman_file(std::string& file_stem, freqman_db& db) {
return load_freqman_file_ex(file_stem, db, true, true, true);
return load_freqman_file_ex(file_stem, db, true, true, true, FREQMAN_MAX_PER_FILE);
}
bool load_freqman_file_ex(std::string& file_stem, freqman_db& db, bool load_freqs, bool load_ranges, bool load_hamradios) {
bool load_freqman_file_ex(std::string& file_stem, freqman_db& db, bool load_freqs, bool load_ranges, bool load_hamradios, uint8_t max_num_freqs = FREQMAN_MAX_PER_FILE) {
// swap with empty vector to ensure memory is immediately released
std::vector<freqman_entry>().swap(db);
File freqman_file;
size_t length, n = 0, file_position = 0;
char* pos;
@ -114,40 +117,33 @@ bool load_freqman_file_ex(std::string& file_stem, freqman_db& db, bool load_freq
char* line_end;
std::string description;
rf::Frequency frequency_a, frequency_b;
const int read_buf_size = 128;
char file_data[read_buf_size + 1];
char file_data[FREQMAN_READ_BUF_SIZE + 1];
freqman_entry_type type;
freqman_index_t modulation = 0;
freqman_index_t bandwidth = 0;
freqman_index_t step = 0;
freqman_index_t tone = 0;
// these are not enough to really start with a new, clean, empty vector
// swap is the only way to achieve a perfect memory liberation
// db.clear();
// db.shrink_to_fit():
std::vector<freqman_entry>().swap(db);
auto result = freqman_file.open("FREQMAN/" + file_stem + ".TXT");
if (result.is_valid())
return false;
while (1) {
// Read a read_buf_size bytes block from file
// Read a FREQMAN_READ_BUF_SIZE block from file
freqman_file.seek(file_position);
memset(file_data, 0, read_buf_size + 1);
auto read_size = freqman_file.read(file_data, read_buf_size);
memset(file_data, 0, FREQMAN_READ_BUF_SIZE + 1);
auto read_size = freqman_file.read(file_data, FREQMAN_READ_BUF_SIZE);
if (read_size.is_error())
return false; // Read error
file_position += read_buf_size;
file_position += FREQMAN_READ_BUF_SIZE;
// Reset line_start to beginning of buffer
line_start = file_data;
// If EOF reached, insert 0x0A after, in case the last line doesn't have a C/R
if (read_size.value() < read_buf_size)
if (read_size.value() < FREQMAN_READ_BUF_SIZE)
*(line_start + read_size.value()) = 0x0A;
// Look for complete lines in buffer
@ -231,18 +227,18 @@ bool load_freqman_file_ex(std::string& file_stem, freqman_db& db, bool load_freq
if ((type == SINGLE && load_freqs) || (type == RANGE && load_ranges) || (type == HAMRADIO && load_hamradios)) {
db.push_back({frequency_a, frequency_b, description, type, modulation, bandwidth, step, tone});
n++;
if (n > FREQMAN_MAX_PER_FILE) return true;
if (n > max_num_freqs) return true;
}
line_start = line_end + 1;
if (line_start - file_data >= read_buf_size) break;
if (line_start - file_data >= FREQMAN_READ_BUF_SIZE) break;
}
if (read_size.value() != read_buf_size)
if (read_size.value() != FREQMAN_READ_BUF_SIZE)
break; // End of file
// Restart at beginning of last incomplete line
file_position -= (file_data + read_buf_size - line_start);
file_position -= (file_data + FREQMAN_READ_BUF_SIZE - line_start);
}
/* populate implicitly specified modulation / bandwidth */