Add VFS handling logic to mj_openResource.

PiperOrigin-RevId: 653124909
Change-Id: I4d031eb0bfb0070f8493753d2aeaac60ac283b85
This commit is contained in:
Kyle Bayes
2024-07-17 00:40:20 -07:00
committed by Copybara-Service
parent 7f46e936f6
commit 2cf352c2e6
13 changed files with 244 additions and 247 deletions
+7 -13
View File
@@ -33,7 +33,6 @@
#include <vector>
#include "lodepng.h"
#include <mujoco/mjmacro.h>
#include <mujoco/mjmodel.h>
#include <mujoco/mjplugin.h>
#include <mujoco/mjtnum.h>
@@ -45,7 +44,6 @@
#include "user/user_model.h"
#include "user/user_resource.h"
#include "user/user_util.h"
#include "user/user_vfs.h"
namespace {
namespace mju = ::mujoco::util;
@@ -704,18 +702,14 @@ void mjCBase::NameSpace(const mjCModel* m) {
// load resource if found (fallback to OS filesystem)
mjResource* mjCBase::LoadResource(std::string filename, const mjVFS* vfs) {
// try reading from provided VFS
mjResource* r = mju_openVfsResource(filename.c_str(), vfs);
if (!r) {
std::array<char, 1024> error;
// not in vfs try a provider or fallback to OS filesystem
r = mju_openResource(filename.c_str(), error.data(), error.size());
if (!r) {
throw mjCError(nullptr, "%s", error.data());
}
// try reading from provided VFS or fallback to OS filesystem
std::array<char, 1024> error;
mjResource* resource = mju_openResource(filename.c_str(), vfs,
error.data(), error.size());
if (!resource) {
throw mjCError(nullptr, "%s", error.data());
}
return r;
return resource;
}
+105 -132
View File
@@ -18,7 +18,6 @@
#include <sys/types.h>
#include <sys/stat.h>
#include <climits>
#include <cstddef>
#include <cstdint>
#include <cstdio>
@@ -35,12 +34,16 @@
#endif
#include <mujoco/mjplugin.h>
#include <mujoco/mujoco.h>
#include "engine/engine_plugin.h"
#include "engine/engine_util_errmem.h"
#include "engine/engine_util_misc.h"
#include "user/user_util.h"
#include "user/user_vfs.h"
namespace {
using mujoco::user::FileToMemory;
// file buffer used internally for the OS filesystem
struct FileSpec {
bool is_read; // set to nonzero if buffer was read into
@@ -48,11 +51,74 @@ struct FileSpec {
time_t mtime; // last modified time
};
// callback for opening a resource, returns zero on failure
int FileOpen(mjResource* resource, char* error, size_t nerror) {
resource->provider = nullptr;
resource->data = new FileSpec;
const char* name = resource->name;
FileSpec* spec = (FileSpec*) resource->data;
spec->is_read = false;
struct stat file_stat;
if (stat(name, &file_stat) == 0) {
memcpy(&spec->mtime, &file_stat.st_mtime, sizeof(time_t));
} else {
if (error) {
snprintf(error, nerror, "Error opening file '%s': %s", name,
strerror(errno));
}
return 0;
}
mju_encodeBase64(resource->timestamp, (uint8_t*) &spec->mtime,
sizeof(time_t));
return 1;
}
// OS filesystem read callback
int FileRead(mjResource* resource, const void** buffer) {
FileSpec* spec = (FileSpec*) resource->data;
// only read once from file
if (!spec->is_read) {
spec->buffer = FileToMemory(resource->name);
spec->is_read = true;
}
*buffer = spec->buffer.data();
return spec->buffer.size();
}
// OS filesystem close callback
void FileClose(mjResource* resource) {
FileSpec* spec = (FileSpec*) resource->data;
if (spec) delete spec;
}
// OS filesystem getdir callback
void FileGetDir(mjResource* resource, const char** dir, int* ndir) {
*dir = resource->name;
*ndir = mjuu_dirnamelen(resource->name);
}
// OS filesystem modified callback
int FileModified(const mjResource* resource, const char*timestamp) {
if (mju_isValidBase64(timestamp) != sizeof(time_t)) {
return 1; // error (assume modified)
}
time_t time1, time2;
mju_decodeBase64((uint8_t*) &time1, timestamp);
time2 = ((FileSpec*) resource->data)->mtime;
double diff = difftime(time2, time1);
if (diff < 0) return -1;
if (diff > 0) return 1;
return 0;
}
} // namespace
// open the given resource; if the name doesn't have a prefix matching with a
// resource provider, then the OS filesystem is used
mjResource* mju_openResource(const char* name, char* error, size_t nerror) {
mjResource* mju_openResource(const char* name, const mjVFS* vfs,
char* error, size_t nerror) {
// no error so far
if (error) {
error[0] = '\0';
@@ -60,7 +126,10 @@ mjResource* mju_openResource(const char* name, char* error, size_t nerror) {
mjResource* resource = (mjResource*) mju_malloc(sizeof(mjResource));
if (resource == nullptr) {
mjERROR("could not allocate memory");
if (error) {
strncpy(error, "could not allocate memory", nerror);
error[nerror - 1] = '\0';
}
return nullptr;
}
@@ -70,16 +139,30 @@ mjResource* mju_openResource(const char* name, char* error, size_t nerror) {
// copy name
resource->name = (char*) mju_malloc(sizeof(char) * (strlen(name) + 1));
if (resource->name == nullptr) {
if (error) {
strncpy(error, "could not allocate memory", nerror);
error[nerror - 1] = '\0';
}
mju_closeResource(resource);
mjERROR("could not allocate memory");
return nullptr;
}
memcpy(resource->name, name, sizeof(char) * (strlen(name) + 1));
// first priority is to check the VFS
if (vfs != nullptr) {
const mjpResourceProvider* provider = GetVfsResourceProvider();
resource->data = (void*) vfs;
resource->provider = provider;
if (provider->open(resource)) {
return resource;
}
}
// find provider based off prefix of name
const mjpResourceProvider* provider = mjp_getResourceProvider(name);
if (provider != nullptr) {
resource->provider = provider;
resource->data = nullptr;
if (provider->open(resource)) {
return resource;
}
@@ -95,24 +178,11 @@ mjResource* mju_openResource(const char* name, char* error, size_t nerror) {
}
// lastly fallback to OS filesystem
resource->provider = nullptr;
resource->data = new FileSpec;
FileSpec* spec = (FileSpec*) resource->data;
spec->is_read = false;
struct stat file_stat;
if (stat(name, &file_stat) == 0) {
memcpy(&spec->mtime, &file_stat.st_mtime, sizeof(time_t));
} else {
if (error) {
snprintf(error, nerror, "Error opening file '%s': %s", name,
strerror(errno));
}
mju_closeResource(resource);
return nullptr;
if (FileOpen(resource, error, nerror)) {
return resource;
}
mju_encodeBase64(resource->timestamp, (uint8_t*) &spec->mtime,
sizeof(time_t));
return resource;
mju_closeResource(resource);
return nullptr;
}
@@ -124,14 +194,11 @@ void mju_closeResource(mjResource* resource) {
}
// use the resource provider close callback
if (resource->provider && resource->provider->close) {
resource->provider->close(resource);
const mjpResourceProvider* provider = resource->provider;
if (provider) {
if (provider->close) provider->close(resource);
} else {
// clear OS filesystem if present
FileSpec* spec = (FileSpec*) resource->data;
if (spec) {
delete spec;
}
FileClose(resource); // clear OS filesystem if present
}
// free resource
@@ -149,36 +216,26 @@ int mju_readResource(mjResource* resource, const void** buffer) {
}
// if provider is NULL, then OS filesystem is used
FileSpec* spec = (FileSpec*) resource->data;
// only read once from file
if (!spec->is_read) {
spec->buffer = mju_fileToMemory(resource->name);
spec->is_read = true;
}
*buffer = spec->buffer.data();
return spec->buffer.size();
return FileRead(resource, buffer);
}
// get directory path of resource
void mju_getResourceDir(mjResource* resource, const char** dir, int* ndir) {
*dir = NULL;
*dir = nullptr;
*ndir = 0;
if (resource == NULL) {
if (resource == nullptr) {
return;
}
// provider is not OS filesystem
if (resource->provider) {
if (resource->provider->getdir) {
resource->provider->getdir(resource, dir, ndir);
}
const mjpResourceProvider* provider = resource->provider;
if (provider) {
if (provider->getdir) provider->getdir(resource, dir, ndir);
} else {
*dir = resource->name;
*ndir = mju_dirnamelen(resource->name);
// fallback to OS filesystem
FileGetDir(resource, dir, ndir);
}
}
@@ -197,89 +254,5 @@ int mju_isModifiedResource(const mjResource* resource, const char* timestamp) {
}
// fallback to OS filesystem
if (mju_isValidBase64(timestamp) != sizeof(time_t)) {
return 1; // error (assume modified)
}
time_t time1, time2;
mju_decodeBase64((uint8_t*) &time1, timestamp);
time2 = ((FileSpec*) resource->data)->mtime;
double diff = difftime(time2, time1);
if (diff < 0) return -1;
if (diff > 0) return 1;
return 0;
}
// get the length of the dirname portion of a given path
int mju_dirnamelen(const char* path) {
if (!path) {
return 0;
}
int pos = -1;
for (int i = 0; path[i]; ++i) {
if (path[i] == '/' || path[i] == '\\') {
pos = i;
}
}
return pos + 1;
}
// read file into memory buffer (allocated here with mju_malloc)
std::vector<uint8_t> mju_fileToMemory(const char* filename) {
FILE* fp = fopen(filename, "rb");
if (!fp) {
return {};
}
// find size
if (fseek(fp, 0, SEEK_END) != 0) {
fclose(fp);
mju_warning("Failed to calculate size for '%s'", filename);
return {};
}
// ensure file size fits in int
long long_filesize = ftell(fp); // NOLINT(runtime/int)
if (long_filesize > INT_MAX) {
fclose(fp);
mju_warning("File size over 2GB is not supported. File: '%s'", filename);
return {};
} else if (long_filesize < 0) {
fclose(fp);
mju_warning("Failed to calculate size for '%s'", filename);
return {};
}
std::vector<uint8_t> buffer(long_filesize);
// go back to start of file
if (fseek(fp, 0, SEEK_SET) != 0) {
fclose(fp);
mju_warning("Read error while reading '%s'", filename);
return {};
}
// allocate and read
std::size_t bytes_read = fread(buffer.data(), 1, buffer.size(), fp);
// check that read data matches file size
if (bytes_read != buffer.size()) { // SHOULD NOT OCCUR
if (ferror(fp)) {
fclose(fp);
mju_warning("Read error while reading '%s'", filename);
return {};
} else if (feof(fp)) {
buffer.resize(bytes_read);
}
}
// close file, return contents
fclose(fp);
return buffer;
return FileModified(resource, timestamp);
}
+2 -7
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@@ -30,7 +30,8 @@ extern "C" {
// open the given resource; if the name doesn't have a prefix matching with a
// resource provider, then the OS filesystem is used
MJAPI mjResource* mju_openResource(const char* name, char* error, std::size_t nerror);
MJAPI mjResource* mju_openResource(const char* name, const mjVFS* vfs,
char* error, std::size_t nerror);
// close the given resource; no-op if resource is NULL
MJAPI void mju_closeResource(mjResource* resource);
@@ -47,14 +48,8 @@ MJAPI void mju_getResourceDir(mjResource* resource, const char** dir, int* ndir)
// return < 0 if the resource is older than the given timestamp
MJAPI int mju_isModifiedResource(const mjResource* resource, const char* timestamp);
// get the length of the dirname portion of a given path
MJAPI int mju_dirnamelen(const char* path);
#ifdef __cplusplus
}
#endif
// read file into memory buffer (allocated here with mju_malloc)
std::vector<uint8_t> mju_fileToMemory(const char* filename);
#endif // MUJOCO_SRC_ENGINE_ENGINE_RESOURCE_H_
+72 -1
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@@ -16,8 +16,10 @@
#include <algorithm>
#include <cctype>
#include <climits>
#include <cmath>
#include <cstddef>
#include <cstdint>
#include <cstdio>
#include <cstring>
#include <optional>
@@ -941,6 +943,22 @@ std::string mjuu_extToContentType(std::string_view filename) {
}
}
// get the length of the dirname portion of a given path
int mjuu_dirnamelen(const char* path) {
if (!path) {
return 0;
}
int pos = -1;
for (int i = 0; path[i]; ++i) {
if (path[i] == '/' || path[i] == '\\') {
pos = i;
}
}
return pos + 1;
}
namespace mujoco::user {
std::string FilePath::Combine(const std::string& s1, const std::string& s2) {
@@ -1012,7 +1030,6 @@ FilePath FilePath::StripExt() const {
return FilePathFast(path_.substr(0, n));
}
// is directory absolute path
std::string FilePath::AbsPrefix(const std::string& str) {
// empty: not absolute
@@ -1066,5 +1083,59 @@ std::string FilePath::StrLower() const {
return str;
}
// read file into memory buffer
std::vector<uint8_t> FileToMemory(const char* filename) {
FILE* fp = fopen(filename, "rb");
if (!fp) {
return {};
}
// find size
if (fseek(fp, 0, SEEK_END) != 0) {
fclose(fp);
mju_warning("Failed to calculate size for '%s'", filename);
return {};
}
// ensure file size fits in int
long long_filesize = ftell(fp); // NOLINT(runtime/int)
if (long_filesize > INT_MAX) {
fclose(fp);
mju_warning("File size over 2GB is not supported. File: '%s'", filename);
return {};
} else if (long_filesize < 0) {
fclose(fp);
mju_warning("Failed to calculate size for '%s'", filename);
return {};
}
std::vector<uint8_t> buffer(long_filesize);
// go back to start of file
if (fseek(fp, 0, SEEK_SET) != 0) {
fclose(fp);
mju_warning("Read error while reading '%s'", filename);
return {};
}
// allocate and read
std::size_t bytes_read = fread(buffer.data(), 1, buffer.size(), fp);
// check that read data matches file size
if (bytes_read != buffer.size()) { // SHOULD NOT OCCUR
if (ferror(fp)) {
fclose(fp);
mju_warning("Read error while reading '%s'", filename);
return {};
} else if (feof(fp)) {
buffer.resize(bytes_read);
}
}
// close file, return contents
fclose(fp);
return buffer;
}
} // namespace mujoco::user
+8
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@@ -16,9 +16,11 @@
#define MUJOCO_SRC_USER_USER_UTIL_H_
#include <cstddef>
#include <cstdint>
#include <optional>
#include <string>
#include <string_view>
#include <vector>
const double mjEPS = 1E-14; // minimum value in various calculations
const double mjMINMASS = 1E-6; // minimum mass allowed
@@ -230,6 +232,9 @@ class FilePath {
std::string path_;
};
// read file into memory buffer
std::vector<uint8_t> FileToMemory(const char* filename);
} // namespace mujoco::user
// strip path from filename
@@ -258,4 +263,7 @@ std::optional<std::string_view> mjuu_parseContentTypeAttrSubtype(std::string_vie
// convert filename extension to content type; return empty string if not found
std::string mjuu_extToContentType(std::string_view filename);
// get the length of the dirname portion of a given path
int mjuu_dirnamelen(const char* path);
#endif // MUJOCO_SRC_USER_USER_UTIL_H_
+9 -44
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@@ -17,19 +17,20 @@
#include <cstddef>
#include <cstring>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <string>
#include <unordered_map>
#include <utility>
#include <vector>
#include "engine/engine_util_errmem.h"
#include "engine/engine_util_misc.h"
#include "user/user_resource.h"
#include "user/user_util.h"
namespace {
using mujoco::user::FilePath;
using mujoco::user::FileToMemory;
// internal struct for VFS files
struct VFSFile {
@@ -177,7 +178,7 @@ void Close(mjResource* resource) {
// getdir callback for the VFS resource provider
void GetDir(mjResource* resource, const char** dir, int* ndir) {
*dir = (resource) ? resource->name : nullptr;
*ndir = (resource) ? mju_dirnamelen(resource->name) : 0;
*ndir = (resource) ? mjuu_dirnamelen(resource->name) : 0;
}
// modified callback for the VFS resource provider
@@ -227,7 +228,7 @@ int mj_addFileVFS(mjVFS* vfs, const char* directory, const char* filename) {
}
// allocate and read
std::vector<uint8_t> buffer = mju_fileToMemory(fullname.c_str());
std::vector<uint8_t> buffer = FileToMemory(fullname.c_str());
if (buffer.empty()) {
return -1;
}
@@ -265,44 +266,8 @@ void mj_deleteVFS(mjVFS* vfs) {
}
}
// open VFS resource
mjResource* mju_openVfsResource(const char* name, const mjVFS* vfs) {
if (vfs == nullptr) {
return nullptr;
}
// VFS provider
static struct mjpResourceProvider provider = { nullptr, &Open, &Read, &Close,
&GetDir, &Modified, nullptr };
// create resource
mjResource* resource = (mjResource*) mju_malloc(sizeof(mjResource));
if (resource == nullptr) {
mjERROR("could not allocate memory");
return nullptr;
}
// clear out resource
memset(resource, 0, sizeof(mjResource));
// copy name
std::size_t n = std::strlen(name);
resource->name = (char*) mju_malloc(sizeof(char) * (n + 1));
if (resource->name == nullptr) {
mju_closeResource(resource);
mjERROR("could not allocate memory");
return nullptr;
}
std::memcpy(resource->name, name, sizeof(char) * (n + 1));
resource->data = (void*) vfs;
// open resource
resource->provider = &provider;
if (provider.open(resource)) {
return resource;
}
// not found in VFS
mju_closeResource(resource);
return nullptr;
const mjpResourceProvider* GetVfsResourceProvider() {
static mjpResourceProvider provider
= { nullptr, &Open, &Read, &Close, &GetDir, &Modified, nullptr };
return &provider;
}
+2 -3
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@@ -45,11 +45,10 @@ MJAPI int mj_deleteFileVFS(mjVFS* vfs, const char* filename);
// delete all files from VFS
MJAPI void mj_deleteVFS(mjVFS* vfs);
// open VFS resource
MJAPI mjResource* mju_openVfsResource(const char* name, const mjVFS* vfs);
#ifdef __cplusplus
}
#endif
const mjpResourceProvider* GetVfsResourceProvider();
#endif // MUJOCO_SRC_USER_USER_VFS_H_
+19 -27
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@@ -173,27 +173,23 @@ static void mjIncludeXML(mjXReader& reader, XMLElement* elem,
} else {
fullname = filename;
}
mjResource *resource = mju_openVfsResource(fullname.c_str(), vfs);
if (!resource) {
// load from provider or OS filesystem
std::array<char, 1024> error;
resource = mju_openResource(fullname.c_str(), error.data(), error.size());
if (!resource) {
if (!mjuu_isabspath(filename)) {
fullname = std::string(dir) + filename;
} else {
fullname = filename;
}
// load from provider or OS filesystem
std::array<char, 1024> error;
resource = mju_openResource(fullname.c_str(), error.data(), error.size());
if (!resource) {
throw mjXError(elem, "%s", error.data());
}
// legacy behavior: try to load in top level directory
std::array<char, 1024> error;
mjResource *resource = mju_openResource(fullname.c_str(), vfs,
error.data(), error.size());
if (resource == nullptr) {
// new behavior: try to load in relative directory
if (!mjuu_isabspath(filename)) {
fullname = std::string(dir) + filename;
resource = mju_openResource(fullname.c_str(), vfs, error.data(), error.size());
}
}
if (resource == nullptr) {
throw mjXError(elem, "%s", error.data());
}
if (!mjuu_isabspath(filename)) {
filename = std::string(dir) + filename;
}
@@ -293,16 +289,12 @@ mjSpec* mjParseXML(const char* filename, const mjVFS* vfs,
// get data source
const char* xmlstring = nullptr;
mjResource* resource = mju_openVfsResource(filename, vfs);
if (!resource) {
// load from provider or fallback to OS filesystem
std::array<char, 1024> rerror;
resource = mju_openResource(filename, rerror.data(), rerror.size());
if (!resource) {
std::snprintf(error, error_sz, "mjParseXML: %s", rerror.data());
return nullptr;
}
std::array<char, 1024> rerror;
mjResource* resource = mju_openResource(filename, vfs,
rerror.data(), rerror.size());
if (resource == nullptr) {
std::snprintf(error, error_sz, "mjParseXML: %s", rerror.data());
return nullptr;
}
int buffer_size = mju_readResource(resource, (const void**) &xmlstring);
+7 -9
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@@ -14,6 +14,7 @@
#include "xml/xml_api.h"
#include <array>
#include <cstdio>
#include <cstring>
#include <fstream>
@@ -186,15 +187,12 @@ int mj_printSchema(const char* filename, char* buffer, int buffer_sz, int flg_ht
// load model from binary MJB resource
mjModel* mj_loadModel(const char* filename, const mjVFS* vfs) {
mjResource* resource = nullptr;
// first try vfs, otherwise try a provider or OS filesystem
if (!(resource = mju_openVfsResource(filename, vfs))) {
char error[1024];
if (!(resource = mju_openResource(filename, error, 1024))) {
mju_warning("%s", error);
return nullptr;
}
std::array<char, 1024> error;
mjResource* resource = mju_openResource(filename, vfs,
error.data(), error.size());
if (resource == nullptr) {
mju_warning("%s", error.data());
return nullptr;
}
const void* buffer = NULL;
+2 -1
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@@ -169,7 +169,8 @@ static std::string ResolveFilePath(XMLElement* e, std::string filename,
// TODO(kylebayes): We first look in the base model directory for files to
// remain backwards compatible.
std::string full_filename = mjuu_combinePaths(dir, filename);
mjResource *resource = mju_openResource(full_filename.c_str(), nullptr, 0);
mjResource *resource = mju_openResource(full_filename.c_str(), nullptr,
nullptr, 0);
if (resource != nullptr) {
mju_closeResource(resource);
return filename;
+2 -2
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@@ -47,7 +47,7 @@ void CacheText(mjCCache& cache, const std::string& model,
mjVFS vfs;
mj_defaultVFS(&vfs);
mj_addBufferVFS(&vfs, name.c_str(), text.data(), text.size());
mjResource* resource = mju_openVfsResource(name.c_str(), &vfs);
mjResource* resource = mju_openResource(name.c_str(), &vfs, nullptr, 0);
std::shared_ptr<const void> data(&text, +[](const void* data) {});
cache.Insert(model, resource, data, text.size());
mju_closeResource(resource);
@@ -61,7 +61,7 @@ GetCachedText(mjCCache& cache, const std::string& model,
mjVFS vfs;
mj_defaultVFS(&vfs);
mj_addBufferVFS(&vfs, name.c_str(), text.data(), std::strlen(text.c_str()));
mjResource* resource = mju_openVfsResource(name.c_str(), &vfs);
mjResource* resource = mju_openResource(name.c_str(), &vfs, nullptr, 0);
bool inserted = cache.PopulateData(resource,
[&cached_text](const void* data) {
cached_text = *(static_cast<const std::string*>(data));
+7 -6
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@@ -233,7 +233,7 @@ TEST_F(ResourceTest, GeneralTest) {
EXPECT_GT(i, 0);
// open resource
mjResource* resource = mju_openResource("str:file", nullptr, 0);
mjResource* resource = mju_openResource("str:file", nullptr, nullptr, 0);
ASSERT_THAT(resource, NotNull());
const char* buffer = NULL;
@@ -256,7 +256,7 @@ TEST_F(ResourceTest, GeneralFailureTest) {
static std::array<char, 1024> error;
// open resource
mjResource* resource = mju_openResource("str:notfound",
mjResource* resource = mju_openResource("str:notfound", nullptr,
error.data(), error.size());
ASSERT_THAT(resource, IsNull());
@@ -281,7 +281,7 @@ TEST_F(ResourceTest, NameWithValidPrefix) {
};
// open resource
mjResource* resource = mju_openResource("nop:found", nullptr, 0);
mjResource* resource = mju_openResource("nop:found", nullptr, nullptr, 0);
ASSERT_THAT(resource, NotNull());
mju_closeResource(resource);
}
@@ -304,7 +304,7 @@ TEST_F(ResourceTest, NameWithUpperCasePrefix) {
};
// open resource
mjResource* resource = mju_openResource("NOP:found", nullptr, 0);
mjResource* resource = mju_openResource("NOP:found", nullptr, nullptr, 0);
ASSERT_THAT(resource, NotNull());
mju_closeResource(resource);
}
@@ -327,7 +327,7 @@ TEST_F(ResourceTest, NameWithInvalidPrefix) {
};
// open resource
mjResource* resource = mju_openResource("nopfound", nullptr, 0);
mjResource* resource = mju_openResource("nopfound", nullptr, nullptr, 0);
ASSERT_THAT(resource, IsNull());
}
@@ -338,7 +338,8 @@ TEST_F(ResourceTest, OSFilesystemTimestamps) {
const char* const file = "engine/testdata/collision_box/boxbox_deep.xml";
const std::string xml_path = GetTestDataFilePath(file);
mjResource* resource = mju_openResource(xml_path.c_str(), nullptr, 0);
mjResource* resource = mju_openResource(xml_path.c_str(), nullptr,
nullptr, 0);
mju_decodeBase64((uint8_t*) &t, resource->timestamp);
// equal timestamps
+2 -2
View File
@@ -30,7 +30,7 @@ using ::testing::NotNull;
using UserVfsTest = MujocoTest;
static bool HasFile(const mjVFS* vfs, const std::string& filename) {
mjResource* resource = mju_openVfsResource(filename.c_str(), vfs);
mjResource* resource = mju_openResource(filename.c_str(), vfs, nullptr, 0);
bool result = resource != nullptr;
mju_closeResource(resource);
return result;
@@ -222,7 +222,7 @@ TEST_F(UserVfsTest, Timestamps) {
mj_defaultVFS(&vfs);
mj_addBufferVFS(&vfs, "cube.obj", cube, sizeof(cube));
mjResource* resource = mju_openVfsResource("cube.obj", &vfs);
mjResource* resource = mju_openResource("cube.obj", &vfs, nullptr, 0);
// same timestamps
EXPECT_EQ(mju_isModifiedResource(resource, resource->timestamp), 0);