Changed tasks data structure to array of struct with hashed-names.

1 files changed, 114 insertions, 37 deletions

diff --git a/task_tracker.c b/task_tracker.c
index c0f40ab..9901d22 100644
--- a/task_tracker.c
+++ b/task_tracker.c
@@ -3,6 +3,7 @@
 
 #include <inttypes.h>
 #include <ncurses.h>
+#include <stdbool.h>
 #include <stdlib.h>
 #include <string.h>
 #include <time.h>
@@ -14,41 +15,112 @@ struct task_event {
 	time_t		end;
 };
 
+#define MAX_TASK_NAME 196 // (256-4-7*8)
+
 struct task_info {
-	char*		name;
-	uint64_t	total_seconds;
+	uint32_t	hash;
+	uint64_t	time[7];
+	char		name[MAX_TASK_NAME];
 };
 
 
+struct task_info* tasks = NULL;
+uint32_t tasks_count = 0;
+uint32_t tasks_capacity = 0;
+
 int selected_task = -1;
 char** tasks_names = NULL;
 uint32_t tasks_names_size = 0;
 uint32_t tasks_names_capacity = 0;
 
+
+uint32_t CRC32(const uint8_t data[], size_t data_length) {
+	
+	static const uint32_t crc32_table[] = {
+		0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
+		0xe963a535, 0x9e6495a3,	0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
+		0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
+		0xf3b97148, 0x84be41de,	0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
+		0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec,	0x14015c4f, 0x63066cd9,
+		0xfa0f3d63, 0x8d080df5,	0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
+		0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,	0x35b5a8fa, 0x42b2986c,
+		0xdbbbc9d6, 0xacbcf940,	0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
+		0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
+		0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
+		0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,	0x76dc4190, 0x01db7106,
+		0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
+		0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
+		0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
+		0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
+		0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
+		0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
+		0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
+		0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
+		0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
+		0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
+		0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
+		0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
+		0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
+		0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
+		0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
+		0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
+		0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
+		0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
+		0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
+		0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
+		0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
+		0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
+		0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
+		0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
+		0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
+		0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
+		0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
+		0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
+		0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
+		0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
+		0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
+		0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
+	};
+	
+	uint32_t crc32 = 0xFFFFFFFFu;
+	
+	for (size_t i = 0; i < data_length; i++) {
+		const uint32_t lookupIndex = (crc32 ^ data[i]) & 0xff;
+		crc32 = (crc32 >> 8) ^ crc32_table[lookupIndex];
+	}
+	
+	// Finalize the CRC-32 value by inverting all the bits
+	crc32 ^= 0xFFFFFFFFu;
+	return crc32;
+}
+
 void add_task(char* name)
 {
-	if (tasks_names_size >= tasks_names_capacity)
+	// Exit if task has already been added.
+	uint32_t name_hash = CRC32((uint8_t*)name, sizeof(name));
+	for (uint32_t idx = 0; idx < tasks_count; idx++)
 	{
-		tasks_names_capacity = tasks_names_capacity == 0 ? 16 : tasks_names_capacity << 1;
-		tasks_names = realloc(tasks_names, sizeof(char*) * tasks_names_capacity);
-		/*
-		uint32_t new_capacity = tasks_names_capacity == 0 ? 16 : tasks_names_capacity << 1;
-		char** new_memory = malloc(sizeof(char*) * new_capacity);
-		
-		if (tasks_names != NULL)
+		if (name_hash == tasks[idx].hash && strcmp(name, tasks[idx].name) == 0)
 		{
-			memcpy(new_memory, tasks_names, sizeof(char*) * tasks_names_capacity);
-			free(tasks_names);
+			return;
 		}
-		
-		tasks_names_capacity = new_capacity;
-		tasks_names = (char *[])new_memory;
-		*/
 	}
-	tasks_names[tasks_names_size] = name;
-	tasks_names_size++;
 	
-	// TODO Missing the task_info array.
+	// Expand tasks capacity if required.
+	if (tasks_count >= tasks_capacity)
+	{
+		tasks_capacity = tasks_capacity == 0 ? 16 : tasks_capacity << 1;
+		tasks = realloc(tasks, sizeof(struct task_info) * tasks_capacity);
+	}
+	
+	// Add new task entry.
+	struct task_info* new_task = &tasks[tasks_count];
+	memset(new_task, '0', sizeof(struct task_info));
+	strncpy(new_task->name, name, MAX_TASK_NAME); // TODO should we limit this here, on during sscanf? Maybe leave it in both.
+	new_task->name[MAX_TASK_NAME-1] = '\0';
+	printf(">>> %s\n", new_task->name); // TODO debug
+	new_task->hash = name_hash;
+	tasks_count++;
 }
 
 void add_task_event(char* name, uint64_t start, uint64_t end)
@@ -62,24 +134,26 @@ void fake_data()
 	const char* csv_line[] = {
 		"PI-0000,1659479138,1659482738",
 		"PI-0001,1659479127,1659482727",
-		"XPTO-01 : testing long name,1659479138,1659482738",
-		"Olá vamos cantar uma canção.,1659479127,1659482727",
-		"[ TST-00 á],1659479138,1659482738",
-		"[ XPTO- 01,1659479127,1659482727",
-		"[ TST-00 á],1659479138,1659482738",
-		"[ XPTO- 01,1659479127,1659482727",
-		"[ TST-00 á],1659479138,1659482738",
-		"[ XPTO- 01,1659479127,1659482727",
-		"[ TST-00 á],1659479138,1659482738",
-		"[ XPTO- 01,1659479127,1659482727",
-		"[ TST-00 á],1659479138,1659482738",
-		"[ XPTO- 01,1659479127,1659482727",
-		"[ TST-00 á],1659479138,1659482738",
-		"[ XPTO- 01,1659479127,1659482727",
-		"[ TST-00 á],1659479138,1659482738",
-		"[ XPTO- 01,1659479127,1659482727",
+		"XPTO-01 : testing long name,1659379138,1659382738",
+		"XPTO-01 : testing long nameXPTO-01 : testing long nameXPTO-01 : testing long nameXPTO-01 : testing long nameXPTO-01 : testing long nameXPTO-01 : testing long nameXPTO-01 : testing long nameXPTO-01 : testing long name,123,124",
+		"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa:bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb:cccccccccccccccccccccccccccccc:ddddddddddddddddddddddddddddddddddddd:eeeeeeeeeeeeeeeeeeeeee:fffffffffffffffffff,123,456",
+		"Olá vamos cantar uma canção.,1659279127,1659282727",
+		"[ TST-00 á],1659579138,1659582738",
+		"[ XPTO- 01,1659179127,1659182727",
 		"[ TST-00 á],1659479138,1659482738",
+		"[ XPTO- 01,1659429127,1659482727",
+		"[ TST-00 á],1658479138,1658482738",
+		"[ XPTO- 01,1659669127,1659672727",
+		"[ TST-00 á],1658879138,1658882738",
+		"[ XPTO- 01,1656579127,1656582727",
+		"[ TST-00 á],1659439138,1659492738",
+		"[ XPTO- 01,1655579127,1655682727",
+		"[ TST-00 á],1657679138,1657782738",
+		"[ XPTO- 01,1658179127,1658382727",
+		"[ TST-00 á],1651479138,1651482738",
 		"[ XPTO- 01,1659479127,1659482727",
+		"[ TST-00 á],1659079138,1659082738",
+		"[ XPTO- 01,1659379127,1659382727",
 	};
 // 	const char* csv_line = "1659479138,1659482738";
 // 	const char* csv_line = "zZ[ ã ]Yy,123";
@@ -93,9 +167,12 @@ void fake_data()
 	uint32_t lines_count = sizeof(csv_line)/sizeof(char*);
 	for (uint32_t idx = 0; idx < lines_count; idx++)
 	{
-		sscanf(csv_line[idx], "%m[^,\n],%" SCNu64 ",%" SCNu64, &name, &start, &end);
+		// TODO The following sscanf is allocating memory for the name... we should remove it.
+		sscanf(csv_line[idx], "%m[^,\n],%" SCNu64 ",%" SCNu64, &name, &start, &end); // TODO WIP
 		add_task(name);
-		printf("bazinga: %s : %d : %d\n", name, start, end);
+// 		printf("bazinga: %s : %d : %d\n", name, start, end);
+// 		printf("bazinga: %s : %.19s : %.19s\n", name, ctime(&start), ctime(&end));
+		printf("bazonga: %s\n", tasks[tasks_count-1].name);
 	}
 	
 	printf("### ### --------- ### ###\n");