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#232 uploading single file on full storage #233

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#232 uploading single file on full storage #233

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14 changes: 14 additions & 0 deletions src/tools/mega65_ftp.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2872,11 +2872,25 @@ unsigned int count_total_clusters(unsigned int first_cluster)
unsigned int find_contiguous_clusters(unsigned int total_clusters)
{
unsigned int start_cluster = 0;
unsigned int start_cluster_before = 0;

while (1) {
BOOL is_contiguous = TRUE;
unsigned int cnt;

start_cluster_before = start_cluster;
start_cluster = find_free_cluster(start_cluster);

// printf("start_cluster=%u start_cluster_before=%u\n",
// start_cluster, start_cluster_before);

// find_free_cluster() above returns a lower number on rollover, so
// quitting on variable overflow indicating storage could be full:
if (start_cluster < start_cluster_before) {
fprintf(stderr, "ERROR: Could not allocate enough contiguous clusters %s",
"to create file/dir. Storage device may be full.\n");
return FALSE; // 0 is caught in the caller method
}

for (cnt = 1; cnt < total_clusters; cnt++) {
if (!is_free_cluster(start_cluster + cnt)) {
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