Removed threads support from Argon2.

src/3rdparty/argon2/CMakeLists.txt

@@ -6,7 +6,6 @@ set(CMAKE_C_STANDARD 99)
 set(CMAKE_C_STANDARD_REQUIRED ON)
 
 include(CheckCSourceCompiles)
-find_package(Threads REQUIRED)
 
 add_library(argon2-interface INTERFACE)
 target_include_directories(argon2-interface INTERFACE
@@ -24,20 +23,13 @@ add_library(argon2 STATIC
     lib/encoding.c
     lib/genkat.c
     lib/impl-select.c
-    lib/thread.c
     lib/blake2/blake2.c
 )
-target_link_libraries(argon2
-    PUBLIC argon2-interface ${CMAKE_THREAD_LIBS_INIT}
-    PRIVATE argon2-internal
-)
 
 set_property(TARGET argon2 PROPERTY VERSION ${Upstream_VERSION})
 set_property(TARGET argon2 PROPERTY SOVERSION 1)
 set_property(TARGET argon2 PROPERTY INTERFACE_ARGON2_MAJOR_VERSION 1)
-set_property(TARGET argon2 APPEND PROPERTY
-    COMPATIBLE_INTERFACE_STRING ARGON2_MAJOR_VERSION
-)
+set_property(TARGET argon2 APPEND PROPERTY COMPATIBLE_INTERFACE_STRING ARGON2_MAJOR_VERSION)
 
 if (CMAKE_C_COMPILER_ID MATCHES MSVC)
     function(add_feature_impl FEATURE MSVC_FLAG DEF)

src/3rdparty/argon2/lib/core.c

@@ -27,7 +27,6 @@
 #include <string.h>
 
 #include "core.h"
-#include "thread.h"
 #include "blake2/blake2.h"
 #include "blake2/blake2-impl.h"
 
@@ -250,18 +249,6 @@ uint32_t index_alpha(const argon2_instance_t *instance,
     return absolute_position;
 }
 
-#ifdef _WIN32
-static unsigned __stdcall fill_segment_thr(void *thread_data)
-#else
-static void *fill_segment_thr(void *thread_data)
-#endif
-{
-    argon2_thread_data *my_data = thread_data;
-    fill_segment(my_data->instance_ptr, my_data->pos);
-    argon2_thread_exit();
-    return 0;
-}
-
 /* Single-threaded version for p=1 case */
 static int fill_memory_blocks_st(argon2_instance_t *instance) {
     uint32_t r, s, l;
@@ -281,93 +268,12 @@ static int fill_memory_blocks_st(argon2_instance_t *instance) {
     return ARGON2_OK;
 }
 
-/* Multi-threaded version for p > 1 case */
-static int fill_memory_blocks_mt(argon2_instance_t *instance) {
-    uint32_t r, s;
-    argon2_thread_handle_t *thread = NULL;
-    argon2_thread_data *thr_data = NULL;
-    int rc = ARGON2_OK;
-
-    /* 1. Allocating space for threads */
-    thread = calloc(instance->lanes, sizeof(argon2_thread_handle_t));
-    if (thread == NULL) {
-        rc = ARGON2_MEMORY_ALLOCATION_ERROR;
-        goto fail;
-    }
-
-    thr_data = calloc(instance->lanes, sizeof(argon2_thread_data));
-    if (thr_data == NULL) {
-        rc = ARGON2_MEMORY_ALLOCATION_ERROR;
-        goto fail;
-    }
-
-    for (r = 0; r < instance->passes; ++r) {
-        for (s = 0; s < ARGON2_SYNC_POINTS; ++s) {
-            uint32_t l;
-
-            /* 2. Calling threads */
-            for (l = 0; l < instance->lanes; ++l) {
-                argon2_position_t position;
-
-                /* 2.1 Join a thread if limit is exceeded */
-                if (l >= instance->threads) {
-                    if (argon2_thread_join(thread[l - instance->threads])) {
-                        rc = ARGON2_THREAD_FAIL;
-                        goto fail;
-                    }
-                }
-
-                /* 2.2 Create thread */
-                position.pass = r;
-                position.lane = l;
-                position.slice = (uint8_t)s;
-                position.index = 0;
-                thr_data[l].instance_ptr =
-                    instance; /* preparing the thread input */
-                memcpy(&(thr_data[l].pos), &position,
-                       sizeof(argon2_position_t));
-                if (argon2_thread_create(&thread[l], &fill_segment_thr,
-                                         (void *)&thr_data[l])) {
-                    rc = ARGON2_THREAD_FAIL;
-                    goto fail;
-                }
-
-                /* fill_segment(instance, position); */
-                /*Non-thread equivalent of the lines above */
-            }
-
-            /* 3. Joining remaining threads */
-            for (l = instance->lanes - instance->threads; l < instance->lanes;
-                 ++l) {
-                if (argon2_thread_join(thread[l])) {
-                    rc = ARGON2_THREAD_FAIL;
-                    goto fail;
-                }
-            }
-        }
-
-        if (instance->print_internals) {
-            internal_kat(instance, r); /* Print all memory blocks */
-        }
-    }
-
-fail:
-    if (thread != NULL) {
-        free(thread);
-    }
-    if (thr_data != NULL) {
-        free(thr_data);
-    }
-    return rc;
-}
-
 int fill_memory_blocks(argon2_instance_t *instance) {
     if (instance == NULL || instance->lanes == 0) {
         return ARGON2_INCORRECT_PARAMETER;
     }
 
-    return instance->threads == 1 ?
-            fill_memory_blocks_st(instance) : fill_memory_blocks_mt(instance);
+    return fill_memory_blocks_st(instance);
 }
 
 int validate_inputs(const argon2_context *context) {

src/3rdparty/argon2/lib/thread.c

@@ -1,36 +0,0 @@
-#include "thread.h"
-#if defined(_WIN32)
-#include <windows.h>
-#endif
-
-int argon2_thread_create(argon2_thread_handle_t *handle,
-                         argon2_thread_func_t func, void *args) {
-    if (NULL == handle || func == NULL) {
-        return -1;
-    }
-#if defined(_WIN32)
-    *handle = _beginthreadex(NULL, 0, func, args, 0, NULL);
-    return *handle != 0 ? 0 : -1;
-#else
-    return pthread_create(handle, NULL, func, args);
-#endif
-}
-
-int argon2_thread_join(argon2_thread_handle_t handle) {
-#if defined(_WIN32)
-    if (WaitForSingleObject((HANDLE)handle, INFINITE) == WAIT_OBJECT_0) {
-        return CloseHandle((HANDLE)handle) != 0 ? 0 : -1;
-    }
-    return -1;
-#else
-    return pthread_join(handle, NULL);
-#endif
-}
-
-void argon2_thread_exit(void) {
-#if defined(_WIN32)
-    _endthreadex(0);
-#else
-    pthread_exit(NULL);
-#endif
-}

src/3rdparty/argon2/lib/thread.h

@@ -1,47 +0,0 @@
-#ifndef ARGON2_THREAD_H
-#define ARGON2_THREAD_H
-/*
-        Here we implement an abstraction layer for the simpĺe requirements
-        of the Argon2 code. We only require 3 primitives---thread creation,
-        joining, and termination---so full emulation of the pthreads API
-        is unwarranted. Currently we wrap pthreads and Win32 threads.
-
-        The API defines 2 types: the function pointer type,
-   argon2_thread_func_t,
-        and the type of the thread handle---argon2_thread_handle_t.
-*/
-#if defined(_WIN32)
-#include <process.h>
-#include <stdint.h>
-typedef unsigned(__stdcall *argon2_thread_func_t)(void *);
-typedef uintptr_t argon2_thread_handle_t;
-#else
-#include <pthread.h>
-typedef void *(*argon2_thread_func_t)(void *);
-typedef pthread_t argon2_thread_handle_t;
-#endif
-
-/* Creates a thread
- * @param handle pointer to a thread handle, which is the output of this
- * function. Must not be NULL.
- * @param func A function pointer for the thread's entry point. Must not be
- * NULL.
- * @param args Pointer that is passed as an argument to @func. May be NULL.
- * @return 0 if @handle and @func are valid pointers and a thread is successfuly
- * created.
- */
-int argon2_thread_create(argon2_thread_handle_t *handle,
-                         argon2_thread_func_t func, void *args);
-
-/* Waits for a thread to terminate
- * @param handle Handle to a thread created with argon2_thread_create.
- * @return 0 if @handle is a valid handle, and joining completed successfully.
-*/
-int argon2_thread_join(argon2_thread_handle_t handle);
-
-/* Terminate the current thread. Must be run inside a thread created by
- * argon2_thread_create.
-*/
-void argon2_thread_exit(void);
-
-#endif