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Pass all tests

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This commit is contained in:
Isaac Shoebottom 2023-11-16 23:46:54 -04:00
parent dbca562065
commit 71342900db
1 changed files with 33 additions and 33 deletions
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60
Assignment6/code/main.c
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@ -33,53 +33,55 @@ bool doAllocate(int howMuchToAllocate, int processId) {
int FirstFitIndex = -1;
int WorstFitIndex = -1;
int BestFitIndex = -1;
int startIndex = -1;
int size = 0;
int smallestSoFar = memSize;
int biggestSoFar = 0;
for (int i = 0; i < memSize; ++i) {
if (memory[i] == 0) {
size++;
// GTE, because we need to keep track of all algorithm indexes
if (size == howMuchToAllocate) {
// On first fit, set the index
if (FirstFitIndex == -1) {
FirstFitIndex = i - size + 1;
biggestSoFar = size;
smallestSoFar = size;
if (size == 0) {
startIndex = i;
}
size++;
} else {
if (size >= howMuchToAllocate) {
// On first fit, set the start index
if (FirstFitIndex == -1) {
FirstFitIndex = startIndex;
}
// If the size of the contiguous empty memory is bigger than the largest contiguous empty memory so far, set the index and update the size
if (size >= biggestSoFar) {
WorstFitIndex = i - size + 1;
if (size > biggestSoFar) {
WorstFitIndex = startIndex;
biggestSoFar = size;
}
} else {
// If the size of the contiguous empty memory is smaller than the smallest contiguous empty memory so far, set the index and update the size
if (smallestSoFar >= size) {
BestFitIndex = i - size + 1;
if (size > 0 && smallestSoFar > size) {
BestFitIndex = startIndex;
smallestSoFar = size;
}
}
size = 0;
startIndex = -1;
}
}
// Check if the last chunk is the first fit
if (FirstFitIndex == -1 && size >= howMuchToAllocate) {
FirstFitIndex = startIndex;
}
// Check if the last chunk is the smallest
if (smallestSoFar >= size) {
BestFitIndex = memSize - size;
if (size > 0 && smallestSoFar >= size) {
BestFitIndex = startIndex;
}
if (howMuchToAllocate > memSize) {
printf("Process %d failed to allocate %d memory\n", processId, howMuchToAllocate);
// Statistics
totalFailed++;
// Early exit because there is no space, so don't touch memory
return false;
// Check if the last chunk is the biggest
if (size >= biggestSoFar) {
WorstFitIndex = startIndex;
}
// Since first fit is always set if there is space, we can error on that for any algorithm
if (FirstFitIndex == -1) {
if (FirstFitIndex == -1 || howMuchToAllocate > memSize) {
printf("Process %d failed to allocate %d memory\n", processId, howMuchToAllocate);
// Statistics
totalFailed++;
@ -172,7 +174,7 @@ int getSmallest() {
}
}
// Check if the last chunk is the smallest
if (smallestSize == memSize) {
if (smallestSize >= memSize) {
smallestSize = size;
}
return smallestSize;
@ -184,15 +186,13 @@ int getBiggest() {
for (int i = 0; i < memSize; ++i) {
if (memory[i] == 0) {
size++;
} else {
if (size > biggestSize) {
} else if (size > biggestSize) {
biggestSize = size;
}
size = 0;
}
}
// Check if the last chunk is the biggest
if (biggestSize == 0) {
if (biggestSize <= size) {
biggestSize = size;
}
return biggestSize;