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Update to 64-bit, add test threadqueue

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This commit is contained in:
Charles J. Cliffe 2014-11-20 20:10:28 -05:00
parent a9d46b7624
commit 9706ed8f7e
16 changed files with 5467 additions and 6 deletions
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9
CMakeLists.txt
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@ -59,15 +59,15 @@ include(${wxWidgets_USE_FILE})
if (DEFINED WIN32)
include_directories ( ${PROJECT_SOURCE_DIR}/external/fftw-3.3.4-dll32 ${PROJECT_SOURCE_DIR}/external/rtl-sdr-release )
link_directories ( ${PROJECT_SOURCE_DIR}/external/fftw-3.3.4-dll32 ${PROJECT_SOURCE_DIR}/external/rtl-sdr-release/x32 )
include_directories ( ${PROJECT_SOURCE_DIR}/external/fftw-3.3.4-dll64 ${PROJECT_SOURCE_DIR}/external/rtl-sdr-release )
link_directories ( ${PROJECT_SOURCE_DIR}/external/fftw-3.3.4-dll64 ${PROJECT_SOURCE_DIR}/external/rtl-sdr-release/x64 )
set(FFTW_LIB fftw3-3)
include_directories ( ${PROJECT_SOURCE_DIR}/external/portaudio/include )
link_directories ( ${PROJECT_SOURCE_DIR}/external/portaudio/libs )
SET (PORTAUDIO_LIBRARY portaudio.dll winmm)
link_directories ( ${PROJECT_SOURCE_DIR}/external/liquid-dsp/lib )
link_directories ( ${PROJECT_SOURCE_DIR}/external/liquid-dsp/lib/64 )
include_directories ( ${PROJECT_SOURCE_DIR}/external/liquid-dsp/include )
else (DEFINED WIN32)
set(RTLSDR_INCLUDE "/opt/local/include" CACHE FILEPATH "RTL-SDR Include Path")
@ -122,6 +122,7 @@ SET (cubicsdr_headers
src/audio/AudioThreadTask.h
src/util/Gradient.h
src/util/Timer.h
src/util/ThreadQueue.h
src/visual/PrimaryGLContext.h
src/visual/ScopeCanvas.h
src/visual/ScopeContext.h
@ -139,7 +140,7 @@ include_directories ( ${PROJECT_SOURCE_DIR}/src/sdr
${PROJECT_SOURCE_DIR}/src )
ADD_DEFINITIONS(
-std=c++11 # Or -std=c++0x
-std=c++0x # or -std=c++11
)
#configure_files(${PROJECT_SOURCE_DIR}/shaders ${PROJECT_BINARY_DIR}/shaders COPYONLY)

414
external/fftw-3.3.4-dll64/fftw3.h vendored Normal file
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@ -0,0 +1,414 @@
/*
* Copyright (c) 2003, 2007-14 Matteo Frigo
* Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
*
* The following statement of license applies *only* to this header file,
* and *not* to the other files distributed with FFTW or derived therefrom:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/***************************** NOTE TO USERS *********************************
*
* THIS IS A HEADER FILE, NOT A MANUAL
*
* If you want to know how to use FFTW, please read the manual,
* online at http://www.fftw.org/doc/ and also included with FFTW.
* For a quick start, see the manual's tutorial section.
*
* (Reading header files to learn how to use a library is a habit
* stemming from code lacking a proper manual. Arguably, it's a
* *bad* habit in most cases, because header files can contain
* interfaces that are not part of the public, stable API.)
*
****************************************************************************/
#ifndef FFTW3_H
#define FFTW3_H
#include <stdio.h>
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
/* If <complex.h> is included, use the C99 complex type. Otherwise
define a type bit-compatible with C99 complex */
#if !defined(FFTW_NO_Complex) && defined(_Complex_I) && defined(complex) && defined(I)
# define FFTW_DEFINE_COMPLEX(R, C) typedef R _Complex C
#else
# define FFTW_DEFINE_COMPLEX(R, C) typedef R C[2]
#endif
#define FFTW_CONCAT(prefix, name) prefix ## name
#define FFTW_MANGLE_DOUBLE(name) FFTW_CONCAT(fftw_, name)
#define FFTW_MANGLE_FLOAT(name) FFTW_CONCAT(fftwf_, name)
#define FFTW_MANGLE_LONG_DOUBLE(name) FFTW_CONCAT(fftwl_, name)
#define FFTW_MANGLE_QUAD(name) FFTW_CONCAT(fftwq_, name)
/* IMPORTANT: for Windows compilers, you should add a line
*/
#define FFTW_DLL
/*
here and in kernel/ifftw.h if you are compiling/using FFTW as a
DLL, in order to do the proper importing/exporting, or
alternatively compile with -DFFTW_DLL or the equivalent
command-line flag. This is not necessary under MinGW/Cygwin, where
libtool does the imports/exports automatically. */
#if defined(FFTW_DLL) && (defined(_WIN32) || defined(__WIN32__))
/* annoying Windows syntax for shared-library declarations */
# if defined(COMPILING_FFTW) /* defined in api.h when compiling FFTW */
# define FFTW_EXTERN extern __declspec(dllexport)
# else /* user is calling FFTW; import symbol */
# define FFTW_EXTERN extern __declspec(dllimport)
# endif
#else
# define FFTW_EXTERN extern
#endif
enum fftw_r2r_kind_do_not_use_me {
FFTW_R2HC=0, FFTW_HC2R=1, FFTW_DHT=2,
FFTW_REDFT00=3, FFTW_REDFT01=4, FFTW_REDFT10=5, FFTW_REDFT11=6,
FFTW_RODFT00=7, FFTW_RODFT01=8, FFTW_RODFT10=9, FFTW_RODFT11=10
};
struct fftw_iodim_do_not_use_me {
int n; /* dimension size */
int is; /* input stride */
int os; /* output stride */
};
#include <stddef.h> /* for ptrdiff_t */
struct fftw_iodim64_do_not_use_me {
ptrdiff_t n; /* dimension size */
ptrdiff_t is; /* input stride */
ptrdiff_t os; /* output stride */
};
typedef void (*fftw_write_char_func_do_not_use_me)(char c, void *);
typedef int (*fftw_read_char_func_do_not_use_me)(void *);
/*
huge second-order macro that defines prototypes for all API
functions. We expand this macro for each supported precision
X: name-mangling macro
R: real data type
C: complex data type
*/
#define FFTW_DEFINE_API(X, R, C) \
\
FFTW_DEFINE_COMPLEX(R, C); \
\
typedef struct X(plan_s) *X(plan); \
\
typedef struct fftw_iodim_do_not_use_me X(iodim); \
typedef struct fftw_iodim64_do_not_use_me X(iodim64); \
\
typedef enum fftw_r2r_kind_do_not_use_me X(r2r_kind); \
\
typedef fftw_write_char_func_do_not_use_me X(write_char_func); \
typedef fftw_read_char_func_do_not_use_me X(read_char_func); \
\
FFTW_EXTERN void X(execute)(const X(plan) p); \
\
FFTW_EXTERN X(plan) X(plan_dft)(int rank, const int *n, \
C *in, C *out, int sign, unsigned flags); \
\
FFTW_EXTERN X(plan) X(plan_dft_1d)(int n, C *in, C *out, int sign, \
unsigned flags); \
FFTW_EXTERN X(plan) X(plan_dft_2d)(int n0, int n1, \
C *in, C *out, int sign, unsigned flags); \
FFTW_EXTERN X(plan) X(plan_dft_3d)(int n0, int n1, int n2, \
C *in, C *out, int sign, unsigned flags); \
\
FFTW_EXTERN X(plan) X(plan_many_dft)(int rank, const int *n, \
int howmany, \
C *in, const int *inembed, \
int istride, int idist, \
C *out, const int *onembed, \
int ostride, int odist, \
int sign, unsigned flags); \
\
FFTW_EXTERN X(plan) X(plan_guru_dft)(int rank, const X(iodim) *dims, \
int howmany_rank, \
const X(iodim) *howmany_dims, \
C *in, C *out, \
int sign, unsigned flags); \
FFTW_EXTERN X(plan) X(plan_guru_split_dft)(int rank, const X(iodim) *dims, \
int howmany_rank, \
const X(iodim) *howmany_dims, \
R *ri, R *ii, R *ro, R *io, \
unsigned flags); \
\
FFTW_EXTERN X(plan) X(plan_guru64_dft)(int rank, \
const X(iodim64) *dims, \
int howmany_rank, \
const X(iodim64) *howmany_dims, \
C *in, C *out, \
int sign, unsigned flags); \
FFTW_EXTERN X(plan) X(plan_guru64_split_dft)(int rank, \
const X(iodim64) *dims, \
int howmany_rank, \
const X(iodim64) *howmany_dims, \
R *ri, R *ii, R *ro, R *io, \
unsigned flags); \
\
FFTW_EXTERN void X(execute_dft)(const X(plan) p, C *in, C *out); \
FFTW_EXTERN void X(execute_split_dft)(const X(plan) p, R *ri, R *ii, \
R *ro, R *io); \
\
FFTW_EXTERN X(plan) X(plan_many_dft_r2c)(int rank, const int *n, \
int howmany, \
R *in, const int *inembed, \
int istride, int idist, \
C *out, const int *onembed, \
int ostride, int odist, \
unsigned flags); \
\
FFTW_EXTERN X(plan) X(plan_dft_r2c)(int rank, const int *n, \
R *in, C *out, unsigned flags); \
\
FFTW_EXTERN X(plan) X(plan_dft_r2c_1d)(int n,R *in,C *out,unsigned flags); \
FFTW_EXTERN X(plan) X(plan_dft_r2c_2d)(int n0, int n1, \
R *in, C *out, unsigned flags); \
FFTW_EXTERN X(plan) X(plan_dft_r2c_3d)(int n0, int n1, \
int n2, \
R *in, C *out, unsigned flags); \
\
\
FFTW_EXTERN X(plan) X(plan_many_dft_c2r)(int rank, const int *n, \
int howmany, \
C *in, const int *inembed, \
int istride, int idist, \
R *out, const int *onembed, \
int ostride, int odist, \
unsigned flags); \
\
FFTW_EXTERN X(plan) X(plan_dft_c2r)(int rank, const int *n, \
C *in, R *out, unsigned flags); \
\
FFTW_EXTERN X(plan) X(plan_dft_c2r_1d)(int n,C *in,R *out,unsigned flags); \
FFTW_EXTERN X(plan) X(plan_dft_c2r_2d)(int n0, int n1, \
C *in, R *out, unsigned flags); \
FFTW_EXTERN X(plan) X(plan_dft_c2r_3d)(int n0, int n1, \
int n2, \
C *in, R *out, unsigned flags); \
\
FFTW_EXTERN X(plan) X(plan_guru_dft_r2c)(int rank, const X(iodim) *dims, \
int howmany_rank, \
const X(iodim) *howmany_dims, \
R *in, C *out, \
unsigned flags); \
FFTW_EXTERN X(plan) X(plan_guru_dft_c2r)(int rank, const X(iodim) *dims, \
int howmany_rank, \
const X(iodim) *howmany_dims, \
C *in, R *out, \
unsigned flags); \
\
FFTW_EXTERN X(plan) X(plan_guru_split_dft_r2c)( \
int rank, const X(iodim) *dims, \
int howmany_rank, \
const X(iodim) *howmany_dims, \
R *in, R *ro, R *io, \
unsigned flags); \
FFTW_EXTERN X(plan) X(plan_guru_split_dft_c2r)( \
int rank, const X(iodim) *dims, \
int howmany_rank, \
const X(iodim) *howmany_dims, \
R *ri, R *ii, R *out, \
unsigned flags); \
\
FFTW_EXTERN X(plan) X(plan_guru64_dft_r2c)(int rank, \
const X(iodim64) *dims, \
int howmany_rank, \
const X(iodim64) *howmany_dims, \
R *in, C *out, \
unsigned flags); \
FFTW_EXTERN X(plan) X(plan_guru64_dft_c2r)(int rank, \
const X(iodim64) *dims, \
int howmany_rank, \
const X(iodim64) *howmany_dims, \
C *in, R *out, \
unsigned flags); \
\
FFTW_EXTERN X(plan) X(plan_guru64_split_dft_r2c)( \
int rank, const X(iodim64) *dims, \
int howmany_rank, \
const X(iodim64) *howmany_dims, \
R *in, R *ro, R *io, \
unsigned flags); \
FFTW_EXTERN X(plan) X(plan_guru64_split_dft_c2r)( \
int rank, const X(iodim64) *dims, \
int howmany_rank, \
const X(iodim64) *howmany_dims, \
R *ri, R *ii, R *out, \
unsigned flags); \
\
FFTW_EXTERN void X(execute_dft_r2c)(const X(plan) p, R *in, C *out); \
FFTW_EXTERN void X(execute_dft_c2r)(const X(plan) p, C *in, R *out); \
\
FFTW_EXTERN void X(execute_split_dft_r2c)(const X(plan) p, \
R *in, R *ro, R *io); \
FFTW_EXTERN void X(execute_split_dft_c2r)(const X(plan) p, \
R *ri, R *ii, R *out); \
\
FFTW_EXTERN X(plan) X(plan_many_r2r)(int rank, const int *n, \
int howmany, \
R *in, const int *inembed, \
int istride, int idist, \
R *out, const int *onembed, \
int ostride, int odist, \
const X(r2r_kind) *kind, unsigned flags); \
\
FFTW_EXTERN X(plan) X(plan_r2r)(int rank, const int *n, R *in, R *out, \
const X(r2r_kind) *kind, unsigned flags); \
\
FFTW_EXTERN X(plan) X(plan_r2r_1d)(int n, R *in, R *out, \
X(r2r_kind) kind, unsigned flags); \
FFTW_EXTERN X(plan) X(plan_r2r_2d)(int n0, int n1, R *in, R *out, \
X(r2r_kind) kind0, X(r2r_kind) kind1, \
unsigned flags); \
FFTW_EXTERN X(plan) X(plan_r2r_3d)(int n0, int n1, int n2, \
R *in, R *out, X(r2r_kind) kind0, \
X(r2r_kind) kind1, X(r2r_kind) kind2, \
unsigned flags); \
\
FFTW_EXTERN X(plan) X(plan_guru_r2r)(int rank, const X(iodim) *dims, \
int howmany_rank, \
const X(iodim) *howmany_dims, \
R *in, R *out, \
const X(r2r_kind) *kind, unsigned flags); \
\
FFTW_EXTERN X(plan) X(plan_guru64_r2r)(int rank, const X(iodim64) *dims, \
int howmany_rank, \
const X(iodim64) *howmany_dims, \
R *in, R *out, \
const X(r2r_kind) *kind, unsigned flags); \
\
FFTW_EXTERN void X(execute_r2r)(const X(plan) p, R *in, R *out); \
\
FFTW_EXTERN void X(destroy_plan)(X(plan) p); \
FFTW_EXTERN void X(forget_wisdom)(void); \
FFTW_EXTERN void X(cleanup)(void); \
\
FFTW_EXTERN void X(set_timelimit)(double t); \
\
FFTW_EXTERN void X(plan_with_nthreads)(int nthreads); \
FFTW_EXTERN int X(init_threads)(void); \
FFTW_EXTERN void X(cleanup_threads)(void); \
\
FFTW_EXTERN int X(export_wisdom_to_filename)(const char *filename); \
FFTW_EXTERN void X(export_wisdom_to_file)(FILE *output_file); \
FFTW_EXTERN char *X(export_wisdom_to_string)(void); \
FFTW_EXTERN void X(export_wisdom)(X(write_char_func) write_char, \
void *data); \
FFTW_EXTERN int X(import_system_wisdom)(void); \
FFTW_EXTERN int X(import_wisdom_from_filename)(const char *filename); \
FFTW_EXTERN int X(import_wisdom_from_file)(FILE *input_file); \
FFTW_EXTERN int X(import_wisdom_from_string)(const char *input_string); \
FFTW_EXTERN int X(import_wisdom)(X(read_char_func) read_char, void *data); \
\
FFTW_EXTERN void X(fprint_plan)(const X(plan) p, FILE *output_file); \
FFTW_EXTERN void X(print_plan)(const X(plan) p); \
FFTW_EXTERN char *X(sprint_plan)(const X(plan) p); \
\
FFTW_EXTERN void *X(malloc)(size_t n); \
FFTW_EXTERN R *X(alloc_real)(size_t n); \
FFTW_EXTERN C *X(alloc_complex)(size_t n); \
FFTW_EXTERN void X(free)(void *p); \
\
FFTW_EXTERN void X(flops)(const X(plan) p, \
double *add, double *mul, double *fmas); \
FFTW_EXTERN double X(estimate_cost)(const X(plan) p); \
FFTW_EXTERN double X(cost)(const X(plan) p); \
\
FFTW_EXTERN int X(alignment_of)(R *p); \
FFTW_EXTERN const char X(version)[]; \
FFTW_EXTERN const char X(cc)[]; \
FFTW_EXTERN const char X(codelet_optim)[];
/* end of FFTW_DEFINE_API macro */
FFTW_DEFINE_API(FFTW_MANGLE_DOUBLE, double, fftw_complex)
FFTW_DEFINE_API(FFTW_MANGLE_FLOAT, float, fftwf_complex)
FFTW_DEFINE_API(FFTW_MANGLE_LONG_DOUBLE, long double, fftwl_complex)
/* __float128 (quad precision) is a gcc extension on i386, x86_64, and ia64
for gcc >= 4.6 (compiled in FFTW with --enable-quad-precision) */
#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) \
&& !(defined(__ICC) || defined(__INTEL_COMPILER)) \
&& (defined(__i386__) || defined(__x86_64__) || defined(__ia64__))
# if !defined(FFTW_NO_Complex) && defined(_Complex_I) && defined(complex) && defined(I)
/* note: __float128 is a typedef, which is not supported with the _Complex
keyword in gcc, so instead we use this ugly __attribute__ version.
However, we can't simply pass the __attribute__ version to
FFTW_DEFINE_API because the __attribute__ confuses gcc in pointer
types. Hence redefining FFTW_DEFINE_COMPLEX. Ugh. */
# undef FFTW_DEFINE_COMPLEX
# define FFTW_DEFINE_COMPLEX(R, C) typedef _Complex float __attribute__((mode(TC))) C
# endif
FFTW_DEFINE_API(FFTW_MANGLE_QUAD, __float128, fftwq_complex)
#endif
#define FFTW_FORWARD (-1)
#define FFTW_BACKWARD (+1)
#define FFTW_NO_TIMELIMIT (-1.0)
/* documented flags */
#define FFTW_MEASURE (0U)
#define FFTW_DESTROY_INPUT (1U << 0)
#define FFTW_UNALIGNED (1U << 1)
#define FFTW_CONSERVE_MEMORY (1U << 2)
#define FFTW_EXHAUSTIVE (1U << 3) /* NO_EXHAUSTIVE is default */
#define FFTW_PRESERVE_INPUT (1U << 4) /* cancels FFTW_DESTROY_INPUT */
#define FFTW_PATIENT (1U << 5) /* IMPATIENT is default */
#define FFTW_ESTIMATE (1U << 6)
#define FFTW_WISDOM_ONLY (1U << 21)
/* undocumented beyond-guru flags */
#define FFTW_ESTIMATE_PATIENT (1U << 7)
#define FFTW_BELIEVE_PCOST (1U << 8)
#define FFTW_NO_DFT_R2HC (1U << 9)
#define FFTW_NO_NONTHREADED (1U << 10)
#define FFTW_NO_BUFFERING (1U << 11)
#define FFTW_NO_INDIRECT_OP (1U << 12)
#define FFTW_ALLOW_LARGE_GENERIC (1U << 13) /* NO_LARGE_GENERIC is default */
#define FFTW_NO_RANK_SPLITS (1U << 14)
#define FFTW_NO_VRANK_SPLITS (1U << 15)
#define FFTW_NO_VRECURSE (1U << 16)
#define FFTW_NO_SIMD (1U << 17)
#define FFTW_NO_SLOW (1U << 18)
#define FFTW_NO_FIXED_RADIX_LARGE_N (1U << 19)
#define FFTW_ALLOW_PRUNING (1U << 20)
#ifdef __cplusplus
} /* extern "C" */
#endif /* __cplusplus */
#endif /* FFTW3_H */

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#include <ThreadQueue.h>

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#pragma once
/* Credit to Alfredo Pons / https://plus.google.com/109903449837592676231
* Code from http://gnodebian.blogspot.com.es/2013/07/a-thread-safe-asynchronous-queue-in-c11.html
*
* Changes:
* Charles J. Nov-19-2014
* - Renamed SafeQueue -> ThreadQueue
*/
#include <queue>
#include <list>
#include <mutex>
#include <thread>
#include <cstdint>
#include <condition_variable>
/** A thread-safe asynchronous queue */
template <class T, class Container = std::list<T>>
class ThreadQueue
{
typedef typename Container::value_type value_type;
typedef typename Container::size_type size_type;
typedef Container container_type;
public:
/*! Create safe queue. */
ThreadQueue() = default;
ThreadQueue (ThreadQueue&& sq)
{
m_queue = std::move (sq.m_queue);
}
ThreadQueue (const ThreadQueue& sq)
{
std::lock_guard<std::mutex> lock (sq.m_mutex);
m_queue = sq.m_queue;
}
/*! Destroy safe queue. */
~ThreadQueue()
{
std::lock_guard<std::mutex> lock (m_mutex);
}
/**
* Sets the maximum number of items in the queue. Defaults is 0: No limit
* \param[in] item An item.
*/
void set_max_num_items (unsigned int max_num_items)
{
m_max_num_items = max_num_items;
}
/**
* Pushes the item into the queue.
* \param[in] item An item.
* \return true if an item was pushed into the queue
*/
bool push (const value_type& item)
{
std::lock_guard<std::mutex> lock (m_mutex);
if (m_max_num_items > 0 && m_queue.size() > m_max_num_items)
return false;
m_queue.push (item);
m_condition.notify_one();
return true;
}
/**
* Pushes the item into the queue.
* \param[in] item An item.
* \return true if an item was pushed into the queue
*/
bool push (const value_type&& item)
{
std::lock_guard<std::mutex> lock (m_mutex);
if (m_max_num_items > 0 && m_queue.size() > m_max_num_items)
return false;
m_queue.push (item);
m_condition.notify_one();
return true;
}
/**
* Pops item from the queue. If queue is empty, this function blocks until item becomes available.
* \param[out] item The item.
*/
void pop (value_type& item)
{
std::unique_lock<std::mutex> lock (m_mutex);
m_condition.wait (lock, [this]() // Lambda funct
{
return !m_queue.empty();
});
item = m_queue.front();
m_queue.pop();
}
/**
* Pops item from the queue using the contained type's move assignment operator, if it has one..
* This method is identical to the pop() method if that type has no move assignment operator.
* If queue is empty, this function blocks until item becomes available.
* \param[out] item The item.
*/
void move_pop (value_type& item)
{
std::unique_lock<std::mutex> lock (m_mutex);
m_condition.wait (lock, [this]() // Lambda funct
{
return !m_queue.empty();
});
item = std::move (m_queue.front());
m_queue.pop();
}
/**
* Tries to pop item from the queue.
* \param[out] item The item.
* \return False is returned if no item is available.
*/
bool try_pop (value_type& item)
{
std::unique_lock<std::mutex> lock (m_mutex);
if (m_queue.empty())
return false;
item = m_queue.front();
m_queue.pop();
return true;
}
/**
* Tries to pop item from the queue using the contained type's move assignment operator, if it has one..
* This method is identical to the try_pop() method if that type has no move assignment operator.
* \param[out] item The item.
* \return False is returned if no item is available.
*/
bool try_move_pop (value_type& item)
{
std::unique_lock<std::mutex> lock (m_mutex);
if (m_queue.empty())
return false;
item = std::move (m_queue.front());
m_queue.pop();
return true;
}
/**
* Pops item from the queue. If the queue is empty, blocks for timeout microseconds, or until item becomes available.
* \param[out] t An item.
* \param[in] timeout The number of microseconds to wait.
* \return true if get an item from the queue, false if no item is received before the timeout.
*/
bool timeout_pop (value_type& item, std::uint64_t timeout)
{
std::unique_lock<std::mutex> lock (m_mutex);
if (m_queue.empty())
{
if (timeout == 0)
return false;
if (m_condition.wait_for (lock, std::chrono::microseconds (timeout)) == std::cv_status::timeout)
return false;
}
item = m_queue.front();
m_queue.pop();
return true;
}
/**
* Pops item from the queue using the contained type's move assignment operator, if it has one..
* If the queue is empty, blocks for timeout microseconds, or until item becomes available.
* This method is identical to the try_pop() method if that type has no move assignment operator.
* \param[out] t An item.
* \param[in] timeout The number of microseconds to wait.
* \return true if get an item from the queue, false if no item is received before the timeout.
*/
bool timeout_move_pop (value_type& item, std::uint64_t timeout)
{
std::unique_lock<std::mutex> lock (m_mutex);
if (m_queue.empty())
{
if (timeout == 0)
return false;
if (m_condition.wait_for (lock, std::chrono::microseconds (timeout)) == std::cv_status::timeout)
return false;
}
item = std::move (m_queue.front());
m_queue.pop();
return true;
}
/**
* Gets the number of items in the queue.
* \return Number of items in the queue.
*/
size_type size() const
{
std::lock_guard<std::mutex> lock (m_mutex);
return m_queue.size();
}
/**
* Check if the queue is empty.
* \return true if queue is empty.
*/
bool empty() const
{
std::lock_guard<std::mutex> lock (m_mutex);
return m_queue.empty();
}
/**
* Swaps the contents.
* \param[out] sq The ThreadQueue to swap with 'this'.
*/
void swap (ThreadQueue& sq)
{
if (this != &sq)
{
std::lock_guard<std::mutex> lock1 (m_mutex);
std::lock_guard<std::mutex> lock2 (sq.m_mutex);
m_queue.swap (sq.m_queue);
if (!m_queue.empty())
m_condition.notify_all();
if (!sq.m_queue.empty())
sq.m_condition.notify_all();
}
}
/*! The copy assignment operator */
ThreadQueue& operator= (const ThreadQueue& sq)
{
if (this != &sq)
{
std::lock_guard<std::mutex> lock1 (m_mutex);
std::lock_guard<std::mutex> lock2 (sq.m_mutex);
std::queue<T, Container> temp {sq.m_queue};
m_queue.swap (temp);
if (!m_queue.empty())
m_condition.notify_all();
}
return *this;
}
/*! The move assignment operator */
ThreadQueue& operator= (ThreadQueue && sq)
{
std::lock_guard<std::mutex> lock (m_mutex);
m_queue = std::move (sq.m_queue);
if (!m_queue.empty()) m_condition.notify_all();
return *this;
}
private:
std::queue<T, Container> m_queue;
mutable std::mutex m_mutex;
std::condition_variable m_condition;
unsigned int m_max_num_items = 0;
};
/*! Swaps the contents of two ThreadQueue objects. */
template <class T, class Container>
void swap (ThreadQueue<T, Container>& q1, ThreadQueue<T, Container>& q2)
{
q1.swap (q2);
}