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Merge pull request #9308 from lat9nq/from-scratch

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startup_checks: Use Windows flow for *nix
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liamwhite 2022-11-29 18:45:39 -05:00 committed by GitHub
commit d6b63239ae
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2 changed files with 64 additions and 22 deletions
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82
src/yuzu/startup_checks.cpp
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@ -4,16 +4,19 @@
#include "video_core/vulkan_common/vulkan_wrapper.h"
#ifdef _WIN32
#include <cstring> // for memset, strncpy
#include <cstring>
#include <processthreadsapi.h>
#include <windows.h>
#elif defined(YUZU_UNIX)
#include <cstring>
#include <errno.h>
#include <spawn.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#endif
#include <cstdio>
#include <fmt/core.h>
#include "video_core/vulkan_common/vulkan_instance.h"
#include "video_core/vulkan_common/vulkan_library.h"
#include "yuzu/startup_checks.h"
@ -27,7 +30,7 @@ void CheckVulkan() {
Vulkan::CreateInstance(library, dld, VK_API_VERSION_1_0);
} catch (const Vulkan::vk::Exception& exception) {
std::fprintf(stderr, "Failed to initialize Vulkan: %s\n", exception.what());
fmt::print(stderr, "Failed to initialize Vulkan: {}\n", exception.what());
}
}
@ -49,8 +52,15 @@ bool CheckEnvVars(bool* is_child) {
*is_child = true;
return false;
} else if (!SetEnvironmentVariableA(IS_CHILD_ENV_VAR, ENV_VAR_ENABLED_TEXT)) {
std::fprintf(stderr, "SetEnvironmentVariableA failed to set %s with error %lu\n",
IS_CHILD_ENV_VAR, GetLastError());
fmt::print(stderr, "SetEnvironmentVariableA failed to set {} with error {}\n",
IS_CHILD_ENV_VAR, GetLastError());
return true;
}
#elif defined(YUZU_UNIX)
const char* startup_check_var = getenv(STARTUP_CHECK_ENV_VAR);
if (startup_check_var != nullptr &&
std::strncmp(startup_check_var, ENV_VAR_ENABLED_TEXT, 8) == 0) {
CheckVulkan();
return true;
}
#endif
@ -62,8 +72,8 @@ bool StartupChecks(const char* arg0, bool* has_broken_vulkan, bool perform_vulka
// Set the startup variable for child processes
const bool env_var_set = SetEnvironmentVariableA(STARTUP_CHECK_ENV_VAR, ENV_VAR_ENABLED_TEXT);
if (!env_var_set) {
std::fprintf(stderr, "SetEnvironmentVariableA failed to set %s with error %lu\n",
STARTUP_CHECK_ENV_VAR, GetLastError());
fmt::print(stderr, "SetEnvironmentVariableA failed to set {} with error {}\n",
STARTUP_CHECK_ENV_VAR, GetLastError());
return false;
}
@ -81,48 +91,57 @@ bool StartupChecks(const char* arg0, bool* has_broken_vulkan, bool perform_vulka
DWORD exit_code = STILL_ACTIVE;
const int err = GetExitCodeProcess(process_info.hProcess, &exit_code);
if (err == 0) {
std::fprintf(stderr, "GetExitCodeProcess failed with error %lu\n", GetLastError());
fmt::print(stderr, "GetExitCodeProcess failed with error {}\n", GetLastError());
}
// Vulkan is broken if the child crashed (return value is not zero)
*has_broken_vulkan = (exit_code != 0);
if (CloseHandle(process_info.hProcess) == 0) {
std::fprintf(stderr, "CloseHandle failed with error %lu\n", GetLastError());
fmt::print(stderr, "CloseHandle failed with error {}\n", GetLastError());
}
if (CloseHandle(process_info.hThread) == 0) {
std::fprintf(stderr, "CloseHandle failed with error %lu\n", GetLastError());
fmt::print(stderr, "CloseHandle failed with error {}\n", GetLastError());
}
}
if (!SetEnvironmentVariableA(STARTUP_CHECK_ENV_VAR, nullptr)) {
std::fprintf(stderr, "SetEnvironmentVariableA failed to clear %s with error %lu\n",
STARTUP_CHECK_ENV_VAR, GetLastError());
fmt::print(stderr, "SetEnvironmentVariableA failed to clear {} with error {}\n",
STARTUP_CHECK_ENV_VAR, GetLastError());
}
#elif defined(YUZU_UNIX)
const int env_var_set = setenv(STARTUP_CHECK_ENV_VAR, ENV_VAR_ENABLED_TEXT, 1);
if (env_var_set == -1) {
const int err = errno;
fmt::print(stderr, "setenv failed to set {} with error {}\n", STARTUP_CHECK_ENV_VAR, err);
return false;
}
if (perform_vulkan_check) {
const pid_t pid = fork();
if (pid == 0) {
CheckVulkan();
return true;
} else if (pid == -1) {
const int err = errno;
std::fprintf(stderr, "fork failed with error %d\n", err);
const pid_t pid = SpawnChild(arg0);
if (pid == -1) {
return false;
}
// Get exit code from child process
int status;
const int r_val = wait(&status);
const int r_val = waitpid(pid, &status, 0);
if (r_val == -1) {
const int err = errno;
std::fprintf(stderr, "wait failed with error %d\n", err);
fmt::print(stderr, "wait failed with error {}\n", err);
return false;
}
// Vulkan is broken if the child crashed (return value is not zero)
*has_broken_vulkan = (status != 0);
}
const int env_var_cleared = unsetenv(STARTUP_CHECK_ENV_VAR);
if (env_var_cleared == -1) {
const int err = errno;
fmt::print(stderr, "unsetenv failed to clear {} with error {}\n", STARTUP_CHECK_ENV_VAR,
err);
}
#endif
return false;
}
@ -150,10 +169,29 @@ bool SpawnChild(const char* arg0, PROCESS_INFORMATION* pi, int flags) {
pi // lpProcessInformation
);
if (!process_created) {
std::fprintf(stderr, "CreateProcessA failed with error %lu\n", GetLastError());
fmt::print(stderr, "CreateProcessA failed with error {}\n", GetLastError());
return false;
}
return true;
}
#elif defined(YUZU_UNIX)
pid_t SpawnChild(const char* arg0) {
const pid_t pid = fork();
if (pid == -1) {
// error
const int err = errno;
fmt::print(stderr, "fork failed with error {}\n", err);
return pid;
} else if (pid == 0) {
// child
execl(arg0, arg0, nullptr);
const int err = errno;
fmt::print(stderr, "execl failed with error {}\n", err);
_exit(0);
}
return pid;
}
#endif

4
src/yuzu/startup_checks.h
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@ -5,6 +5,8 @@
#ifdef _WIN32
#include <windows.h>
#elif defined(YUZU_UNIX)
#include <sys/types.h>
#endif
constexpr char IS_CHILD_ENV_VAR[] = "YUZU_IS_CHILD";
@ -17,4 +19,6 @@ bool StartupChecks(const char* arg0, bool* has_broken_vulkan, bool perform_vulka
#ifdef _WIN32
bool SpawnChild(const char* arg0, PROCESS_INFORMATION* pi, int flags);
#elif defined(YUZU_UNIX)
pid_t SpawnChild(const char* arg0);
#endif