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Refactor dynType_parseComplex to return early on error and handle err…
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…or of missing the closing brace.
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@PengZheng
PengZheng committed Dec 29, 2023
1 parent 179a3bf commit 2422879
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Showing 4 changed files with 62 additions and 47 deletions.
3 changes: 3 additions & 0 deletions libs/dfi/gtest/src/dyn_message_tests.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,7 @@ extern "C" {

#include "dyn_common.h"
#include "dyn_message.h"
#include "celix_err.h"
#include "celix_version.h"

static void checkMessageVersion(dyn_message_type* dynMsg, const char* v){
Expand Down Expand Up @@ -224,6 +225,7 @@ class DynMessageTests : public ::testing::Test {
DynMessageTests() {
}
~DynMessageTests() override {
celix_err_resetErrors();
}

};
Expand All @@ -242,6 +244,7 @@ TEST_F(DynMessageTests, msg_test3) {

TEST_F(DynMessageTests, msg_test4) {
msg_test4();
celix_err_printErrors(stderr, nullptr, nullptr);
}

TEST_F(DynMessageTests, msg_invalid) {
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18 changes: 18 additions & 0 deletions libs/dfi/gtest/src/dyn_type_ei_tests.cc
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Expand Up @@ -67,6 +67,24 @@ TEST_F(DynTypeErrorInjectionTestSuite, ParseComplexTypeErrors) {
status = dynType_parseWithStr(descriptor, "hello", NULL, &type);
ASSERT_NE(0, status);
ASSERT_STREQ("Error strdup'ing name 'hello'", celix_err_popLastError());

// fail to allocate complex_type_entry
celix_ei_expect_calloc((void*)dynType_parseWithStr, 4, nullptr);
status = dynType_parseWithStr(descriptor, NULL, NULL, &type);
ASSERT_NE(0, status);
ASSERT_STREQ("Error allocating memory for complex_type_entry", celix_err_popLastError());

// fail to allocate ffi_type elements
celix_ei_expect_calloc((void*)dynType_parseWithStr, 4, nullptr, 4);
status = dynType_parseWithStr(descriptor, NULL, NULL, &type);
ASSERT_NE(0, status);
ASSERT_STREQ("Error allocating memory for ffi_type elements", celix_err_popLastError());

// fail to allocate complex types
celix_ei_expect_calloc((void*)dynType_parseWithStr, 4, nullptr, 5);
status = dynType_parseWithStr(descriptor, NULL, NULL, &type);
ASSERT_NE(0, status);
ASSERT_STREQ("Error allocating memory for complex types", celix_err_popLastError());
}

TEST_F(DynTypeErrorInjectionTestSuite, ParseNestedTypeErrors) {
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9 changes: 8 additions & 1 deletion libs/dfi/gtest/src/dyn_type_tests.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -101,7 +101,7 @@ CREATE_EXAMPLES_TEST(EX10)
CREATE_EXAMPLES_TEST(EX11)
CREATE_EXAMPLES_TEST(EX12)
CREATE_EXAMPLES_TEST(EX13)
CREATE_EXAMPLES_TEST(EX14)
//CREATE_EXAMPLES_TEST(EX14)
CREATE_EXAMPLES_TEST(EX15)
CREATE_EXAMPLES_TEST(EX16)
CREATE_EXAMPLES_TEST(EX17)
Expand Down Expand Up @@ -319,6 +319,13 @@ TEST_F(DynTypeTests, ComplexHasEmptyName) {
celix_err_printErrors(stderr, nullptr, nullptr);
}

TEST_F(DynTypeTests, ComplexTypeMissingClosingBrace) {
dyn_type *type = NULL;
auto rc = dynType_parseWithStr(R"({II a b)", nullptr, nullptr, &type);
ASSERT_NE(0, rc);
ASSERT_STREQ("Error parsing complex type, expected '}'", celix_err_popLastError());
}

TEST_F(DynTypeTests, SchemaEndsWithoutNullTerminator) {
dyn_type *type = NULL;
//ends with '-'
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79 changes: 33 additions & 46 deletions libs/dfi/src/dyn_type.c
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Original file line number Diff line number Diff line change
Expand Up @@ -237,6 +237,7 @@ static int dynType_parseEnum(FILE* stream, dyn_type* type) {
}

static int dynType_parseComplex(FILE* stream, dyn_type* type) {
size_t nbEntries = 0;
int status = OK;
type->type = DYN_TYPE_COMPLEX;
type->descriptor = '{';
Expand All @@ -254,69 +255,55 @@ static int dynType_parseComplex(FILE* stream, dyn_type* type) {
}
entry = calloc(1, sizeof(*entry));
if (entry == NULL) {
celix_err_pushf("Error allocating memory for type");
celix_err_push("Error allocating memory for complex_type_entry");
return MEM_ERROR;
}
entry->type = celix_steal_ptr(subType);
TAILQ_INSERT_TAIL(&type->complex.entriesHead, entry, entries);
nbEntries += 1;
c = fgetc(stream);
}

// loop over names
if (status == OK) {
entry = TAILQ_FIRST(&type->complex.entriesHead);
char* name = NULL;
while (c == ' ' && entry != NULL) {
status = dynCommon_parseName(stream, &name);
if (status == OK) {
entry->name = name;
entry = TAILQ_NEXT(entry, entries);
} else {
break;
}
c = getc(stream);
entry = TAILQ_FIRST(&type->complex.entriesHead);
char* name = NULL;
// the current implementation permits trailing unnamed fields, i.e. number of names is less than number of fields
while (c == ' ' && entry != NULL) {
if ((status = dynCommon_parseName(stream, &name)) != OK) {
return status;
}
entry->name = name;
entry = TAILQ_NEXT(entry, entries);
c = getc(stream);
}

int count = 0;
if (status == OK) {
TAILQ_FOREACH(entry, &type->complex.entriesHead, entries) {
count +=1;
}
if (c != '}') {
celix_err_push("Error parsing complex type, expected '}'");
return PARSE_ERROR;
}

if (status == OK) {
type->complex.structType.type = FFI_TYPE_STRUCT;
type->complex.structType.elements = calloc(count + 1, sizeof(ffi_type*));
if (type->complex.structType.elements != NULL) {
type->complex.structType.elements[count] = NULL;
int index = 0;
TAILQ_FOREACH(entry, &type->complex.entriesHead, entries) {
type->complex.structType.elements[index++] = dynType_ffiType(entry->type);
}
} else {
status = MEM_ERROR;
celix_err_pushf("Error allocating memory for elements");
}
type->complex.structType.type = FFI_TYPE_STRUCT;
type->complex.structType.elements = calloc(nbEntries + 1, sizeof(ffi_type*));
if (type->complex.structType.elements == NULL) {
celix_err_push("Error allocating memory for ffi_type elements");
return MEM_ERROR;
}

if (status == OK) {
type->complex.types = calloc(count, sizeof(dyn_type *));
if (type->complex.types != NULL) {
int index = 0;
TAILQ_FOREACH(entry, &type->complex.entriesHead, entries) {
type->complex.types[index++] = entry->type;
}
} else {
status = MEM_ERROR;
celix_err_pushf("Error allocating memory for type");
}
type->complex.structType.elements[nbEntries] = NULL;
int index = 0;
TAILQ_FOREACH(entry, &type->complex.entriesHead, entries) {
type->complex.structType.elements[index++] = dynType_ffiType(entry->type);
}

if (status == OK) {
(void)ffi_get_struct_offsets(FFI_DEFAULT_ABI, type->ffiType, NULL);
type->complex.types = calloc(nbEntries, sizeof(dyn_type *));
if (type->complex.types == NULL) {
celix_err_pushf("Error allocating memory for complex types");
return MEM_ERROR;
}
index = 0;
TAILQ_FOREACH(entry, &type->complex.entriesHead, entries) {
type->complex.types[index++] = entry->type;
}

(void)ffi_get_struct_offsets(FFI_DEFAULT_ABI, type->ffiType, NULL);

return status;
}
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