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Fix DqnArray::Insert count bug, misc unix fixes

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Doyle T 2018-07-05 11:26:04 +10:00
parent da4ba37771
commit 9ebb4f8f23
1 changed files with 24 additions and 45 deletions
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69
dqn.h
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@ -921,9 +921,9 @@ struct DqnArray
void Free () { if (data) { memAPI->Free(data); } *this = {}; } void Free () { if (data) { memAPI->Free(data); } *this = {}; }
T *Front () { DQN_ASSERT(count > 0); return data + 0; } T *Front () { DQN_ASSERT(count > 0); return data + 0; }
T *Back () { DQN_ASSERT(count > 0); return data + (count - 1); } T *Back () { DQN_ASSERT(count > 0); return data + (count - 1); }
bool Resize (isize newCount) { if (newCount > max) Reserve(GrowCapacity_(newCount)); count = newCount; } void Resize (isize newCount) { if (newCount > max) Reserve(GrowCapacity_(newCount)); count = newCount; }
bool Resize (isize newCount, T const *v) { if (newCount > max) Reserve(GrowCapacity_(newCount)); if (newCount > count) for (isize n = count; n < newCount; n++) data[n] = *v; count = newCount; } void Resize (isize newCount, T const *v) { if (newCount > max) Reserve(GrowCapacity_(newCount)); if (newCount > count) for (isize n = count; n < newCount; n++) data[n] = *v; count = newCount; }
bool Reserve (isize newMax); void Reserve (isize newMax);
T *Push (T const &v) { return Insert(count, &v, 1); } T *Push (T const &v) { return Insert(count, &v, 1); }
T *Push (T const *v, isize numItems = 1) { return Insert(count, v, numItems); } T *Push (T const *v, isize numItems = 1) { return Insert(count, v, numItems); }
void Pop () { if (count > 0) count--; } void Pop () { if (count > 0) count--; }
@ -947,18 +947,16 @@ template<typename T> T *DqnArray<T>::Insert(isize index, T const *v, isize numIt
index = DQN_MIN(DQN_MAX(index, 0), count); index = DQN_MIN(DQN_MAX(index, 0), count);
isize const newCount = count + numItems; isize const newCount = count + numItems;
if (newCount >= max && !Reserve(GrowCapacity_(newCount))) if (newCount >= max)
{ Reserve(GrowCapacity_(newCount));
return nullptr;
}
T *src = data + index; T *src = data + index;
T *dest = src + numItems; T *dest = src + numItems;
count = newCount;
if (src < dest) if (src < dest)
memmove(dest, src, ((data + count) - src) * sizeof(T)); memmove(dest, src, ((data + count) - src) * sizeof(T));
count = newCount;
for (isize i = 0; i < numItems; i++) for (isize i = 0; i < numItems; i++)
src[i] = v[i]; src[i] = v[i];
@ -973,24 +971,23 @@ template <typename T> void DqnArray<T>::EraseStable(isize index)
count--; count--;
} }
template <typename T> bool DqnArray<T>::Reserve(isize newMax) template <typename T> void DqnArray<T>::Reserve(isize newMax)
{ {
if (newMax <= max) return true; if (newMax <= max) return;
if (data) if (data)
{ {
T *newData = (T *)memAPI->Realloc(data, max * sizeof(T), newMax * sizeof(T)); T *newData = (T *)memAPI->Realloc(data, max * sizeof(T), newMax * sizeof(T));
if (newData) data = newData;
{ max = newMax;
data = newData; }
max = newMax; else
} {
return newData; data = (T *)memAPI->Alloc(newMax * sizeof(T));
max = newMax;
} }
data = (T *)memAPI->Alloc(newMax * sizeof(T)); DQN_ASSERT(data);
max = newMax;
return data;
} }
// #DqnAllocatorMetadata // #DqnAllocatorMetadata
@ -3304,7 +3301,7 @@ void DqnAllocatorMetadata::Init(bool boundsGuard)
this->boundsGuardSize = sizeof(HEAD_GUARD_VALUE); this->boundsGuardSize = sizeof(HEAD_GUARD_VALUE);
LOCAL_PERSIST DqnMemAPI heap = DqnMemAPI::HeapAllocator(); LOCAL_PERSIST DqnMemAPI heap = DqnMemAPI::HeapAllocator();
this->allocations.memAPI = &heap; this->allocations.memAPI = &heap;
DQN_ASSERT(this->allocations.Reserve(128)); this->allocations.Reserve(128);
} }
else else
{ {
@ -8310,13 +8307,8 @@ DQN_FILE__LIST_DIR(DqnFile__PlatformListDir)
#endif // DQN__IS_WIN32 #endif // DQN__IS_WIN32
#ifdef DQN__IS_UNIX #ifdef DQN__IS_UNIX
FILE_SCOPE bool DqnFile__UnixGetFileSizeWithStat(FILE *file, char const *path, usize *size) FILE_SCOPE bool DqnFile__UnixGetFileSize(char const *path, usize *size)
{ {
if (!file)
{
return false;
}
struct stat fileStat = {}; struct stat fileStat = {};
if (stat(path, &fileStat)) if (stat(path, &fileStat))
{ {
@ -8330,6 +8322,8 @@ FILE_SCOPE bool DqnFile__UnixGetFileSizeWithStat(FILE *file, char const *path, u
// But there can also be zero-byte files, we can't be sure. So manual check by counting bytes // But there can also be zero-byte files, we can't be sure. So manual check by counting bytes
if (*size == 0) if (*size == 0)
{ {
FILE *file = fopen(path, "r");
DQN_DEFER(fclose(file));
u64 fileSizeInBytes = 0; u64 fileSizeInBytes = 0;
char c = fgetc(file); char c = fgetc(file);
@ -8338,7 +8332,6 @@ FILE_SCOPE bool DqnFile__UnixGetFileSizeWithStat(FILE *file, char const *path, u
fileSizeInBytes++; fileSizeInBytes++;
c = fgetc(file); c = fgetc(file);
} }
rewind(file);
} }
return true; return true;
@ -8395,11 +8388,8 @@ DqnFile__UnixOpen(char const *path, DqnFile *file, u32 flags, DqnFile::Action ac
// TODO(doyle): Use open syscall // TODO(doyle): Use open syscall
// TODO(doyle): Query errno // TODO(doyle): Query errno
file->handle = reinterpret_cast<void *>(fopen(path, mode)); if (!DqnFile__UnixGetFileSize(path, &file->size))
if (!DqnFile__UnixGetFileSize(reinterpret_cast<FILE *>(file->handle), path, &file->size))
{ {
// TODO(doyle): Logging
fclose(handle);
return false; return false;
} }
@ -8463,7 +8453,7 @@ DQN_FILE__LIST_DIR(DqnFile__PlatformListDir)
*numFiles = currNumFiles; *numFiles = currNumFiles;
while (dirFile) while (dirFile)
{ {
DqnStr_Copy(list[listIndex++], dirFile->d_name, DQN_ARRAY_COUNT(dirFile->d_name)); DqnMem_Copy(list[listIndex++], dirFile->d_name, DQN_ARRAY_COUNT(dirFile->d_name));
dirFile = readdir(dirHandle); dirFile = readdir(dirHandle);
} }
closedir(dirHandle); closedir(dirHandle);
@ -8715,19 +8705,8 @@ bool DqnFile::GetFileSize(char const *path, usize *size)
#else #else
// TODO(doyle): Error logging // TODO(doyle): Error logging
if (!DqnFile__UnixGetFileSizeWithStat(path, size)) return false; bool result = DqnFile__UnixGetFileSize(path, size);
return result;
// NOTE: 0 size can occur in some instances where files are generated on demand,
// i.e. /proc/cpuinfo
if (*size == 0)
{
// If stat fails, then do a manual byte count
FILE *handle = fopen(path, "r");
*size = DqnFile__UnixGetFileSizeManual(handle, false);
fclose(handle);
}
return true;
#endif #endif
} }