From d579d0d8e576f391dea18e361d581d3413e19794 Mon Sep 17 00:00:00 2001
From: Carles Fernandez <carles.fernandez@gmail.com>
Date: Sun, 15 Jul 2012 00:47:20 +0000
Subject: [PATCH] Gives and informative message and exits the program when the
source file is not found, instead of abort and core dumping
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@210 64b25241-fba3-4117-9849-534c7e92360d
---
.../adapters/file_signal_source.cc | 392 ++++++++++--------
1 file changed, 208 insertions(+), 184 deletions(-)
diff --git a/src/algorithms/signal_source/adapters/file_signal_source.cc b/src/algorithms/signal_source/adapters/file_signal_source.cc
index b2c7ba433..d61c54de9 100644
--- a/src/algorithms/signal_source/adapters/file_signal_source.cc
+++ b/src/algorithms/signal_source/adapters/file_signal_source.cc
@@ -7,7 +7,7 @@
*
* -------------------------------------------------------------------------
*
- * Copyright (C) 2010-2011 (see AUTHORS file for a list of contributors)
+ * Copyright (C) 2010-2012 (see AUTHORS file for a list of contributors)
*
* GNSS-SDR is a software defined Global Navigation
* Satellite Systems receiver
@@ -37,6 +37,7 @@
#include <iostream>
#include <fstream>
#include <iomanip>
+#include <exception>
#include <gflags/gflags.h>
#include <glog/log_severity.h>
#include <glog/logging.h>
@@ -45,109 +46,132 @@
using google::LogMessage;
DEFINE_string(signal_source, "-",
- "If defined, path to the file containing the signal samples (overrides the configuration file)");
+ "If defined, path to the file containing the signal samples (overrides the configuration file)");
FileSignalSource::FileSignalSource(ConfigurationInterface* configuration,
- std::string role, unsigned int in_streams, unsigned int out_streams,
- gr_msg_queue_sptr queue) :
- role_(role), in_streams_(in_streams), out_streams_(out_streams), queue_(queue)
+ std::string role, unsigned int in_streams, unsigned int out_streams,
+ gr_msg_queue_sptr queue) :
+ role_(role), in_streams_(in_streams), out_streams_(out_streams), queue_(queue)
{
- std::string default_filename = "../data/sc2_d16.dat";
- std::string default_item_type = "short";
- std::string default_dump_filename = "../data/sc2_d16.dat";
+ std::string default_filename = "../data/sc2_d16.dat";
+ std::string default_item_type = "short";
+ std::string default_dump_filename = "../data/sc2_d16.dat";
- samples_ = configuration->property(role + ".samples", 0);
- sampling_frequency_ = configuration->property(role + ".sampling_frequency", 0);
- filename_ = configuration->property(role + ".filename", default_filename);
+ samples_ = configuration->property(role + ".samples", 0);
+ sampling_frequency_ = configuration->property(role + ".sampling_frequency", 0);
+ filename_ = configuration->property(role + ".filename", default_filename);
- // override value with commandline flag, if present
- if (FLAGS_signal_source.compare("-") != 0) filename_= FLAGS_signal_source;
+ // override value with commandline flag, if present
+ if (FLAGS_signal_source.compare("-") != 0) filename_= FLAGS_signal_source;
- item_type_ = configuration->property(role + ".item_type", default_item_type);
- repeat_ = configuration->property(role + ".repeat", false);
- dump_ = configuration->property(role + ".dump", false);
- dump_filename_ = configuration->property(role + ".dump_filename", default_dump_filename);
- enable_throttle_control_ = configuration->property(role + ".enable_throttle_control", false);
+ item_type_ = configuration->property(role + ".item_type", default_item_type);
+ repeat_ = configuration->property(role + ".repeat", false);
+ dump_ = configuration->property(role + ".dump", false);
+ dump_filename_ = configuration->property(role + ".dump_filename", default_dump_filename);
+ enable_throttle_control_ = configuration->property(role + ".enable_throttle_control", false);
- if (item_type_.compare("gr_complex") == 0)
+ if (item_type_.compare("gr_complex") == 0)
+ {
+ item_size_ = sizeof(gr_complex);
+ }
+ else if (item_type_.compare("float") == 0)
+ {
+ item_size_ = sizeof(float);
+ }
+ else if (item_type_.compare("short") == 0)
+ {
+ item_size_ = sizeof(short);
+ }
+ else
+ {
+ LOG_AT_LEVEL(WARNING) << item_type_
+ << " unrecognized item type. Using short.";
+ item_size_ = sizeof(short);
+ }
+ try
+ {
+ file_source_ = gr_make_file_source(item_size_, filename_.c_str(), repeat_);
+ }
+ catch (const std::exception &e)
+ {
+ std::cerr
+ << "The receiver was configured to work with a file signal source "
+ << std::endl
+ << "but the specified file is unreachable by GNSS-SDR."
+ << std::endl
+ << "Please modify the configuration at "
+ << "conf/gnss-sdr.conf (the default configuration file)"
+ << std::endl
+ << "and point SignalSource.filename to a valid file,"
+ << std::endl
+ << "or specify your own receiver and source with the flag"
+ << std::endl
+ <<"gnss-sdr --config_file=my_GNSS_SDR_configuration"
+ << std::endl;
+ LOG_AT_LEVEL(INFO) << "file_signal_source: Unable to open the samples file "
+ << filename_.c_str() << ", exiting the program.";
+ exit(1);
+ }
+
+ DLOG(INFO) << "file_source(" << file_source_->unique_id() << ")";
+
+ if (samples_ == 0)
+ {
+ /*!
+ * BUG workaround: The GNURadio file source does not stop the receiver after reaching the End of File.
+ * A possible solution is to compute the file length in samples using file size, excluding the last 100 milliseconds, and enable always the
+ * valve block
+ */
+ std::ifstream file (filename_.c_str(), std::ios::in | std::ios::binary | std::ios::ate);
+ std::ifstream::pos_type size;
+ if (file.is_open())
{
- item_size_ = sizeof(gr_complex);
+ size = file.tellg();
}
- else if (item_type_.compare("float") == 0)
+ else
{
- item_size_ = sizeof(float);
+ std::cout << "file_signal_source: Unable to open the samples file " << filename_.c_str() << std::endl;
+ LOG_AT_LEVEL(ERROR) << "file_signal_source: Unable to open the samples file " << filename_.c_str();
}
- else if (item_type_.compare("short") == 0)
+ std::cout << std::setprecision(16);
+ std::cout <<"Processing file " << filename_ << ", which contains " << (double)size << " [bytes]" << std::endl;
+ if (size > 0)
{
- item_size_ = sizeof(short);
- }
- else
- {
- LOG_AT_LEVEL(WARNING) << item_type_
- << " unrecognized item type. Using short.";
- item_size_ = sizeof(short);
- }
+ samples_ = floor((double)size / (double)item_size()) - ceil(0.1 * (double)sampling_frequency_); //process all the samples available in the file excluding the last 100 ms
- file_source_ = gr_make_file_source(item_size_, filename_.c_str(), repeat_);
- DLOG(INFO) << "file_source(" << file_source_->unique_id() << ")";
-
- if (samples_ == 0)
- {
- /*!
- * BUG workaround: The GNURadio file source does not stop the receiver after reaching the End of File.
- * A possible solution is to compute the file length in samples using file size, excluding the last 100 milliseconds, and enable always the
- * valve block
- */
- std::ifstream file (filename_.c_str(), std::ios::in | std::ios::binary | std::ios::ate);
- std::ifstream::pos_type size;
- if (file.is_open())
- {
- size = file.tellg();
- }
- else
- {
- std::cout << "file_signal_source: Unable to open the samples file " << filename_.c_str() << std::endl;
- LOG_AT_LEVEL(ERROR) << "file_signal_source: Unable to open the samples file " << filename_.c_str();
- }
- std::cout << std::setprecision(16);
- std::cout <<"Processing file " << filename_ << ", which contains " << (double)size << " [bytes]" << std::endl;
- if (size > 0)
- {
- samples_ = floor((double)size / (double)item_size()) - ceil(0.1 * (double)sampling_frequency_); //process all the samples available in the file excluding the last 100 ms
-
- }
- }
- double signal_duration_s;
- signal_duration_s = (double)samples_ * ( 1 /(double)sampling_frequency_);
- DLOG(INFO) << "Total samples to be processed= "<< samples_ << " GNSS signal duration= " << signal_duration_s << " [s]";
- std::cout << "GNSS signal recorded time to be processed: " << signal_duration_s << " [s]" << std::endl;
- // if samples != 0 then enable a flow valve to stop the process after n samples
- if (samples_ != 0)
- {
- valve_ = gnss_sdr_make_valve(item_size_, samples_, queue_);
- DLOG(INFO) << "valve(" << valve_->unique_id() << ")";
}
+ }
+ double signal_duration_s;
+ signal_duration_s = (double)samples_ * ( 1 /(double)sampling_frequency_);
+ DLOG(INFO) << "Total samples to be processed= "<< samples_ << " GNSS signal duration= " << signal_duration_s << " [s]";
+ std::cout << "GNSS signal recorded time to be processed: " << signal_duration_s << " [s]" << std::endl;
+ // if samples != 0 then enable a flow valve to stop the process after n samples
+ if (samples_ != 0)
+ {
+ valve_ = gnss_sdr_make_valve(item_size_, samples_, queue_);
+ DLOG(INFO) << "valve(" << valve_->unique_id() << ")";
+ }
- if (dump_)
- {
- sink_ = gr_make_file_sink(item_size_, dump_filename_.c_str());
- DLOG(INFO) << "file_sink(" << sink_->unique_id() << ")";
- }
+ if (dump_)
+ {
+ sink_ = gr_make_file_sink(item_size_, dump_filename_.c_str());
+ DLOG(INFO) << "file_sink(" << sink_->unique_id() << ")";
+ }
- if (enable_throttle_control_)
- {
- throttle_ = gr_make_throttle(item_size_, sampling_frequency_);
- }
- DLOG(INFO) << "File source filename " << filename_;
- DLOG(INFO) << "Samples " << samples_;
- DLOG(INFO) << "Sampling frequency " << sampling_frequency_;
- DLOG(INFO) << "Item type " << item_type_;
- DLOG(INFO) << "Item size " << item_size_;
- DLOG(INFO) << "Repeat " << repeat_;
- DLOG(INFO) << "Dump " << dump_;
- DLOG(INFO) << "Dump filename " << dump_filename_;
+ if (enable_throttle_control_)
+ {
+ throttle_ = gr_make_throttle(item_size_, sampling_frequency_);
+ }
+ DLOG(INFO) << "File source filename " << filename_;
+ DLOG(INFO) << "Samples " << samples_;
+ DLOG(INFO) << "Sampling frequency " << sampling_frequency_;
+ DLOG(INFO) << "Item type " << item_type_;
+ DLOG(INFO) << "Item size " << item_size_;
+ DLOG(INFO) << "Repeat " << repeat_;
+ DLOG(INFO) << "Dump " << dump_;
+ DLOG(INFO) << "Dump filename " << dump_filename_;
}
@@ -161,52 +185,52 @@ FileSignalSource::~FileSignalSource()
void FileSignalSource::connect(gr_top_block_sptr top_block)
{
- if (samples_ != 0)
+ if (samples_ != 0)
+ {
+ if (enable_throttle_control_ == true)
{
- if (enable_throttle_control_ == true)
- {
- top_block->connect(file_source_, 0, throttle_, 0);
- DLOG(INFO) << "connected file source to throttle";
- top_block->connect(throttle_, 0, valve_, 0);
- DLOG(INFO) << "connected throttle to valve";
- if (dump_)
- {
- top_block->connect(valve_, 0, sink_, 0);
- DLOG(INFO) << "connected valve to file sink";
- }
- }
- else
- {
- top_block->connect(file_source_, 0, valve_, 0);
- DLOG(INFO) << "connected file source to valve";
- if (dump_)
- {
- top_block->connect(valve_, 0, sink_, 0);
- DLOG(INFO) << "connected valve to file sink";
- }
- }
+ top_block->connect(file_source_, 0, throttle_, 0);
+ DLOG(INFO) << "connected file source to throttle";
+ top_block->connect(throttle_, 0, valve_, 0);
+ DLOG(INFO) << "connected throttle to valve";
+ if (dump_)
+ {
+ top_block->connect(valve_, 0, sink_, 0);
+ DLOG(INFO) << "connected valve to file sink";
+ }
}
- else
+ else
{
- if (enable_throttle_control_ == true)
- {
- top_block->connect(file_source_, 0, throttle_, 0);
- DLOG(INFO) << "connected file source to throttle";
- if (dump_)
- {
- top_block->connect(file_source_, 0, sink_, 0);
- DLOG(INFO) << "connected file source to sink";
- }
- }
- else
- {
- if (dump_)
- {
- top_block->connect(file_source_, 0, sink_, 0);
- DLOG(INFO) << "connected file source to sink";
- }
- }
+ top_block->connect(file_source_, 0, valve_, 0);
+ DLOG(INFO) << "connected file source to valve";
+ if (dump_)
+ {
+ top_block->connect(valve_, 0, sink_, 0);
+ DLOG(INFO) << "connected valve to file sink";
+ }
}
+ }
+ else
+ {
+ if (enable_throttle_control_ == true)
+ {
+ top_block->connect(file_source_, 0, throttle_, 0);
+ DLOG(INFO) << "connected file source to throttle";
+ if (dump_)
+ {
+ top_block->connect(file_source_, 0, sink_, 0);
+ DLOG(INFO) << "connected file source to sink";
+ }
+ }
+ else
+ {
+ if (dump_)
+ {
+ top_block->connect(file_source_, 0, sink_, 0);
+ DLOG(INFO) << "connected file source to sink";
+ }
+ }
+ }
}
@@ -216,52 +240,52 @@ void FileSignalSource::connect(gr_top_block_sptr top_block)
void FileSignalSource::disconnect(gr_top_block_sptr top_block)
{
- if (samples_ != 0)
+ if (samples_ != 0)
+ {
+ if (enable_throttle_control_ == true)
{
- if (enable_throttle_control_ == true)
- {
- top_block->disconnect(file_source_, 0, throttle_, 0);
- DLOG(INFO) << "disconnected file source to throttle";
- top_block->disconnect(throttle_, 0, valve_, 0);
- DLOG(INFO) << "disconnected throttle to valve";
- if (dump_)
- {
- top_block->disconnect(valve_, 0, sink_, 0);
- DLOG(INFO) << "disconnected valve to file sink";
- }
- }
- else
- {
- top_block->disconnect(file_source_, 0, valve_, 0);
- DLOG(INFO) << "disconnected file source to valve";
- if (dump_)
- {
- top_block->disconnect(valve_, 0, sink_, 0);
- DLOG(INFO) << "disconnected valve to file sink";
- }
- }
+ top_block->disconnect(file_source_, 0, throttle_, 0);
+ DLOG(INFO) << "disconnected file source to throttle";
+ top_block->disconnect(throttle_, 0, valve_, 0);
+ DLOG(INFO) << "disconnected throttle to valve";
+ if (dump_)
+ {
+ top_block->disconnect(valve_, 0, sink_, 0);
+ DLOG(INFO) << "disconnected valve to file sink";
+ }
}
- else
+ else
{
- if (enable_throttle_control_ == true)
- {
- top_block->disconnect(file_source_, 0, throttle_, 0);
- DLOG(INFO) << "disconnected file source to throttle";
- if (dump_)
- {
- top_block->disconnect(file_source_, 0, sink_, 0);
- DLOG(INFO) << "disconnected file source to sink";
- }
- }
- else
- {
- if (dump_)
- {
- top_block->disconnect(file_source_, 0, sink_, 0);
- DLOG(INFO) << "disconnected file source to sink";
- }
- }
+ top_block->disconnect(file_source_, 0, valve_, 0);
+ DLOG(INFO) << "disconnected file source to valve";
+ if (dump_)
+ {
+ top_block->disconnect(valve_, 0, sink_, 0);
+ DLOG(INFO) << "disconnected valve to file sink";
+ }
}
+ }
+ else
+ {
+ if (enable_throttle_control_ == true)
+ {
+ top_block->disconnect(file_source_, 0, throttle_, 0);
+ DLOG(INFO) << "disconnected file source to throttle";
+ if (dump_)
+ {
+ top_block->disconnect(file_source_, 0, sink_, 0);
+ DLOG(INFO) << "disconnected file source to sink";
+ }
+ }
+ else
+ {
+ if (dump_)
+ {
+ top_block->disconnect(file_source_, 0, sink_, 0);
+ DLOG(INFO) << "disconnected file source to sink";
+ }
+ }
+ }
}
@@ -270,9 +294,9 @@ void FileSignalSource::disconnect(gr_top_block_sptr top_block)
gr_basic_block_sptr FileSignalSource::get_left_block()
{
- LOG_AT_LEVEL(WARNING)
- << "Left block of a signal source should not be retrieved";
- return gr_block_sptr();
+ LOG_AT_LEVEL(WARNING)
+ << "Left block of a signal source should not be retrieved";
+ return gr_block_sptr();
}
@@ -281,19 +305,19 @@ gr_basic_block_sptr FileSignalSource::get_left_block()
gr_basic_block_sptr FileSignalSource::get_right_block()
{
- if (samples_ != 0)
+ if (samples_ != 0)
+ {
+ return valve_;
+ }
+ else
+ {
+ if (enable_throttle_control_ == true)
{
- return valve_;
+ return throttle_;
}
- else
+ else
{
- if (enable_throttle_control_ == true)
- {
- return throttle_;
- }
- else
- {
- return file_source_;
- }
+ return file_source_;
}
+ }
}