1 |
// client.c |
// common.c |
2 |
// |
// |
3 |
/**************************************************************************** |
/**************************************************************************** |
4 |
liblscp - LinuxSampler Control Protocol API |
liblscp - LinuxSampler Control Protocol API |
25 |
#include <ctype.h> |
#include <ctype.h> |
26 |
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27 |
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28 |
// Chunk size magic: |
// Split chunk size magic: |
29 |
// LSCP_SPLIT_CHUNK1 = 2 ^ LSCP_SPLIT_CHUNK2 |
// LSCP_SPLIT_CHUNK1 := 2 ^ LSCP_SPLIT_CHUNK2 |
30 |
#define LSCP_SPLIT_CHUNK1 4 |
#define LSCP_SPLIT_CHUNK1 4 |
31 |
#define LSCP_SPLIT_CHUNK2 2 |
#define LSCP_SPLIT_CHUNK2 2 |
32 |
// Chunk size legal calculator. |
// Chunk size legal calculator. |
49 |
pClient->pszResult = strdup(lscp_ltrim(pszResult)); |
pClient->pszResult = strdup(lscp_ltrim(pszResult)); |
50 |
} |
} |
51 |
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|
52 |
// The main client requester call executive. |
|
53 |
lscp_status_t lscp_client_call ( lscp_client_t *pClient, const char *pszQuery ) |
// The common client receiver executive. |
54 |
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lscp_status_t lscp_client_recv ( lscp_client_t *pClient, char *pchBuffer, int *pcchBuffer, int iTimeout ) |
55 |
{ |
{ |
56 |
fd_set fds; // File descriptor list for select(). |
fd_set fds; // File descriptor list for select(). |
57 |
int fd, fdmax; // Maximum file descriptor number. |
int fd, fdmax; // Maximum file descriptor number. |
58 |
struct timeval tv; // For specifying a timeout value. |
struct timeval tv; // For specifying a timeout value. |
59 |
int iSelect; // Holds select return status. |
int iSelect; // Holds select return status. |
60 |
int iTimeout; |
|
61 |
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lscp_status_t ret = LSCP_FAILED; |
62 |
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63 |
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if (pClient == NULL) |
64 |
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return ret; |
65 |
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66 |
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// Prepare for waiting on select... |
67 |
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fd = (int) pClient->cmd.sock; |
68 |
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FD_ZERO(&fds); |
69 |
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FD_SET((unsigned int) fd, &fds); |
70 |
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fdmax = fd; |
71 |
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|
72 |
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// Use the timeout select feature... |
73 |
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if (iTimeout < 1) |
74 |
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iTimeout = pClient->iTimeout; |
75 |
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if (iTimeout > 1000) { |
76 |
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tv.tv_sec = iTimeout / 1000; |
77 |
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iTimeout -= tv.tv_sec * 1000; |
78 |
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} |
79 |
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else tv.tv_sec = 0; |
80 |
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tv.tv_usec = iTimeout * 1000; |
81 |
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|
82 |
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// Wait for event... |
83 |
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iSelect = select(fdmax + 1, &fds, NULL, NULL, &tv); |
84 |
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if (iSelect > 0 && FD_ISSET(fd, &fds)) { |
85 |
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// May recv now... |
86 |
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*pcchBuffer = recv(pClient->cmd.sock, pchBuffer, *pcchBuffer, 0); |
87 |
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if (*pcchBuffer > 0) |
88 |
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ret = LSCP_OK; |
89 |
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else if (*pcchBuffer < 0) |
90 |
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lscp_socket_perror("lscp_client_recv: recv"); |
91 |
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else if (*pcchBuffer == 0) { |
92 |
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// Damn, server probably disconnected, |
93 |
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// we better free everything down here. |
94 |
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lscp_socket_agent_free(&(pClient->evt)); |
95 |
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lscp_socket_agent_free(&(pClient->cmd)); |
96 |
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// Fake a result message. |
97 |
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ret = LSCP_QUIT; |
98 |
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} |
99 |
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} // Check if select has timed out. |
100 |
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else if (iSelect == 0) |
101 |
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ret = LSCP_TIMEOUT; |
102 |
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else |
103 |
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lscp_socket_perror("lscp_client_recv: select"); |
104 |
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105 |
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return ret; |
106 |
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} |
107 |
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108 |
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109 |
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// The main client requester call executive. |
110 |
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lscp_status_t lscp_client_call ( lscp_client_t *pClient, const char *pszQuery ) |
111 |
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{ |
112 |
int cchQuery; |
int cchQuery; |
113 |
char achResult[LSCP_BUFSIZ]; |
char achResult[LSCP_BUFSIZ]; |
114 |
int cchResult; |
int cchResult; |
136 |
// Send data, and then, wait for the result... |
// Send data, and then, wait for the result... |
137 |
cchQuery = strlen(pszQuery); |
cchQuery = strlen(pszQuery); |
138 |
if (send(pClient->cmd.sock, pszQuery, cchQuery, 0) < cchQuery) { |
if (send(pClient->cmd.sock, pszQuery, cchQuery, 0) < cchQuery) { |
139 |
lscp_socket_perror("_lscp_client_call: send"); |
lscp_socket_perror("lscp_client_call: send"); |
140 |
pszResult = "Failure during send operation"; |
pszResult = "Failure during send operation"; |
141 |
lscp_client_set_result(pClient, pszResult, iErrno); |
lscp_client_set_result(pClient, pszResult, iErrno); |
142 |
return ret; |
return ret; |
143 |
} |
} |
144 |
|
|
145 |
// Prepare for waiting on select... |
// Wait for receive event... |
146 |
fd = (int) pClient->cmd.sock; |
cchResult = sizeof(achResult); |
147 |
FD_ZERO(&fds); |
ret = lscp_client_recv(pClient, achResult, &cchResult, pClient->iTimeout); |
148 |
FD_SET((unsigned int) fd, &fds); |
|
149 |
fdmax = fd; |
switch (ret) { |
150 |
|
|
151 |
// Use the timeout select feature... |
case LSCP_OK: |
152 |
iTimeout = pClient->iTimeout; |
// Always force the result to be null terminated (and trim trailing CRLFs)! |
153 |
if (iTimeout > 1000) { |
while (cchResult > 0 && (achResult[cchResult - 1] == '\n' || achResult[cchResult- 1] == '\r')) |
154 |
tv.tv_sec = iTimeout / 1000; |
cchResult--; |
155 |
iTimeout -= tv.tv_sec * 1000; |
achResult[cchResult] = (char) 0; |
156 |
} |
// Check if the response it's an error or warning message. |
157 |
else tv.tv_sec = 0; |
if (strncasecmp(achResult, "WRN:", 4) == 0) |
158 |
tv.tv_usec = iTimeout * 1000; |
ret = LSCP_WARNING; |
159 |
|
else if (strncasecmp(achResult, "ERR:", 4) == 0) |
160 |
// Wait for event... |
ret = LSCP_ERROR; |
161 |
iSelect = select(fdmax + 1, &fds, NULL, NULL, &tv); |
// So we got a result... |
162 |
if (iSelect > 0 && FD_ISSET(fd, &fds)) { |
if (ret == LSCP_OK) { |
163 |
// May recv now... |
// Reset errno in case of success. |
164 |
cchResult = recv(pClient->cmd.sock, achResult, sizeof(achResult), 0); |
iErrno = 0; |
165 |
if (cchResult > 0) { |
// Is it a special successful response? |
166 |
// Assume early success. |
if (strncasecmp(achResult, "OK[", 3) == 0) { |
167 |
ret = LSCP_OK; |
// Parse the OK message, get the return string under brackets... |
|
// Always force the result to be null terminated (and trim trailing CRLFs)! |
|
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while (cchResult > 0 && (achResult[cchResult - 1] == '\n' || achResult[cchResult- 1] == '\r')) |
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cchResult--; |
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achResult[cchResult] = (char) 0; |
|
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// Check if the response it's an error or warning message. |
|
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if (strncasecmp(achResult, "WRN:", 4) == 0) |
|
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ret = LSCP_WARNING; |
|
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else if (strncasecmp(achResult, "ERR:", 4) == 0) |
|
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ret = LSCP_ERROR; |
|
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// So we got a result... |
|
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if (ret == LSCP_OK) { |
|
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// Reset errno in case of success. |
|
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iErrno = 0; |
|
|
// Is it a special successful response? |
|
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if (strncasecmp(achResult, "OK[", 3) == 0) { |
|
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// Parse the OK message, get the return string under brackets... |
|
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pszToken = lscp_strtok(achResult, pszSeps, &(pch)); |
|
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if (pszToken) |
|
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pszResult = lscp_strtok(NULL, pszSeps, &(pch)); |
|
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} |
|
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else pszResult = achResult; |
|
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// The result string is now set to the command response, if any. |
|
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} else { |
|
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// Parse the error/warning message, skip first colon... |
|
168 |
pszToken = lscp_strtok(achResult, pszSeps, &(pch)); |
pszToken = lscp_strtok(achResult, pszSeps, &(pch)); |
169 |
|
if (pszToken) |
170 |
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pszResult = lscp_strtok(NULL, pszSeps, &(pch)); |
171 |
|
} |
172 |
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else pszResult = achResult; |
173 |
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// The result string is now set to the command response, if any. |
174 |
|
} else { |
175 |
|
// Parse the error/warning message, skip first colon... |
176 |
|
pszToken = lscp_strtok(achResult, pszSeps, &(pch)); |
177 |
|
if (pszToken) { |
178 |
|
// Get the error number... |
179 |
|
pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
180 |
if (pszToken) { |
if (pszToken) { |
181 |
// Get the error number... |
iErrno = atoi(pszToken); |
182 |
pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
// And make the message text our final result. |
183 |
if (pszToken) { |
pszResult = lscp_strtok(NULL, pszSeps, &(pch)); |
|
iErrno = atoi(pszToken); |
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// And make the message text our final result. |
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pszResult = lscp_strtok(NULL, pszSeps, &(pch)); |
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} |
|
184 |
} |
} |
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// The result string is set to the error/warning message text. |
|
185 |
} |
} |
186 |
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// The result string is set to the error/warning message text. |
187 |
} |
} |
188 |
else if (cchResult == 0) { |
break; |
189 |
// Damn, server disconnected, we better free everything down here. |
|
190 |
lscp_socket_agent_free(&(pClient->evt)); |
case LSCP_TIMEOUT: |
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lscp_socket_agent_free(&(pClient->cmd)); |
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// Fake a result message. |
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ret = LSCP_QUIT; |
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pszResult = "Server terminated the connection"; |
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iErrno = (int) ret; |
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} else { |
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// What's down? |
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lscp_socket_perror("_lscp_client_call: recv"); |
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pszResult = "Failure during receive operation"; |
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} |
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} // Check if select has timed out. |
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else if (iSelect == 0) { |
|
191 |
// Fake a result message. |
// Fake a result message. |
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ret = LSCP_TIMEOUT; |
|
192 |
pszResult = "Timeout during receive operation"; |
pszResult = "Timeout during receive operation"; |
193 |
iErrno = (int) ret; |
iErrno = (int) ret; |
194 |
} |
break; |
195 |
else lscp_socket_perror("_lscp_client_call: select"); |
|
196 |
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case LSCP_QUIT: |
197 |
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// Fake a result message. |
198 |
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pszResult = "Server terminated the connection"; |
199 |
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iErrno = (int) ret; |
200 |
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break; |
201 |
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|
202 |
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case LSCP_FAILED: |
203 |
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default: |
204 |
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// What's down? |
205 |
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pszResult = "Failure during receive operation"; |
206 |
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break; |
207 |
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} |
208 |
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|
209 |
// Make the result official... |
// Make the result official... |
210 |
lscp_client_set_result(pClient, pszResult, iErrno); |
lscp_client_set_result(pClient, pszResult, iErrno); |
257 |
return psz; |
return psz; |
258 |
} |
} |
259 |
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|
260 |
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// Unquote and make a duplicate of an in-split string. |
261 |
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void lscp_unquote_dup ( char **ppszDst, char **ppszSrc ) |
262 |
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{ |
263 |
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// Free desteny string, if already there. |
264 |
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if (*ppszDst) |
265 |
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free(*ppszDst); |
266 |
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*ppszDst = NULL; |
267 |
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// Unquote and duplicate. |
268 |
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if (*ppszSrc) |
269 |
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*ppszDst = lscp_unquote(ppszSrc, 1); |
270 |
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} |
271 |
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|
272 |
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|
273 |
// Custom tokenizer. |
// Custom tokenizer. |
274 |
char *lscp_strtok ( char *pchBuffer, const char *pszSeps, char **ppch ) |
char *lscp_strtok ( char *pchBuffer, const char *pszSeps, char **ppch ) |
392 |
int iSize, i, j, cchSeps; |
int iSize, i, j, cchSeps; |
393 |
int *piSplit, *piNewSplit; |
int *piSplit, *piNewSplit; |
394 |
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|
395 |
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// Get it clean first. |
396 |
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pchHead = lscp_ltrim((char *) pszCsv); |
397 |
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if (*pchHead == (char) 0) |
398 |
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return NULL; |
399 |
|
|
400 |
// Initial size is one chunk away. |
// Initial size is one chunk away. |
401 |
iSize = LSCP_SPLIT_CHUNK1; |
iSize = LSCP_SPLIT_CHUNK1; |
402 |
// Allocate and split... |
// Allocate and split... |
406 |
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|
407 |
// Make a copy of the original string. |
// Make a copy of the original string. |
408 |
i = 0; |
i = 0; |
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pchHead = (char *) pszCsv; |
|
409 |
if ((piSplit[i++] = atoi(pchHead)) < 0) { |
if ((piSplit[i++] = atoi(pchHead)) < 0) { |
410 |
free(piSplit); |
free(piSplit); |
411 |
return NULL; |
return NULL; |
469 |
#endif // LSCP_ISPLIT_COUNT |
#endif // LSCP_ISPLIT_COUNT |
470 |
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|
471 |
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|
472 |
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// Split a string into a null terminated array of parameter items. |
473 |
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lscp_param_t *lscp_psplit_create ( const char *pszCsv, const char *pszSeps1, const char *pszSeps2 ) |
474 |
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{ |
475 |
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char *pszHead, *pch; |
476 |
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int iSize, i, j, cchSeps1, cchSeps2; |
477 |
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lscp_param_t *ppSplit, *ppNewSplit; |
478 |
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|
479 |
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pszHead = strdup(pszCsv); |
480 |
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if (pszHead == NULL) |
481 |
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return NULL; |
482 |
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|
483 |
|
iSize = LSCP_SPLIT_CHUNK1; |
484 |
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ppSplit = (lscp_param_t *) malloc(iSize * sizeof(lscp_param_t)); |
485 |
|
if (ppSplit == NULL) { |
486 |
|
free(pszHead); |
487 |
|
return NULL; |
488 |
|
} |
489 |
|
|
490 |
|
cchSeps1 = strlen(pszSeps1); |
491 |
|
cchSeps2 = strlen(pszSeps2); |
492 |
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|
493 |
|
i = 0; |
494 |
|
while ((pch = strpbrk(pszHead, pszSeps1)) != NULL) { |
495 |
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ppSplit[i].key = pszHead; |
496 |
|
pszHead = pch + cchSeps1; |
497 |
|
*pch = (char) 0; |
498 |
|
ppSplit[i].value = lscp_unquote(&pszHead, 0); |
499 |
|
if ((pch = strpbrk(pszHead, pszSeps2)) != NULL) { |
500 |
|
pszHead = pch + cchSeps2; |
501 |
|
*pch = (char) 0; |
502 |
|
} |
503 |
|
if (++i >= iSize) { |
504 |
|
iSize += LSCP_SPLIT_CHUNK1; |
505 |
|
ppNewSplit = (lscp_param_t *) malloc(iSize * sizeof(lscp_param_t)); |
506 |
|
if (ppNewSplit) { |
507 |
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for (j = 0; j < i; j++) { |
508 |
|
ppNewSplit[j].key = ppSplit[j].key; |
509 |
|
ppNewSplit[j].value = ppSplit[j].value; |
510 |
|
} |
511 |
|
free(ppSplit); |
512 |
|
ppSplit = ppNewSplit; |
513 |
|
} |
514 |
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} |
515 |
|
} |
516 |
|
|
517 |
|
if (i < 1) |
518 |
|
free(pszHead); |
519 |
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|
520 |
|
for ( ; i < iSize; i++) { |
521 |
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ppSplit[i].key = NULL; |
522 |
|
ppSplit[i].value = NULL; |
523 |
|
} |
524 |
|
|
525 |
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return ppSplit; |
526 |
|
} |
527 |
|
|
528 |
|
|
529 |
|
// Destroy a parameter list array. |
530 |
|
void lscp_psplit_destroy ( lscp_param_t *ppSplit ) |
531 |
|
{ |
532 |
|
if (ppSplit && ppSplit[0].key) |
533 |
|
free(ppSplit[0].key); |
534 |
|
if (ppSplit) |
535 |
|
free(ppSplit); |
536 |
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} |
537 |
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|
538 |
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|
539 |
|
#ifdef LSCP_PSPLIT_COUNT |
540 |
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|
541 |
|
// Compute a parameter list valid item count. |
542 |
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int lscp_psplit_count ( lscp_param_t *ppSplit ) |
543 |
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{ |
544 |
|
int i = 0; |
545 |
|
while (ppSplit && ppSplit[i].key) |
546 |
|
i++; |
547 |
|
return i; |
548 |
|
} |
549 |
|
|
550 |
|
// Compute a parameter list size. |
551 |
|
int lscp_psplit_size ( lscp_param_t *ppSplit ) |
552 |
|
{ |
553 |
|
return LSCP_SPLIT_SIZE(lscp_psplit_count(ppSplit)); |
554 |
|
} |
555 |
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|
556 |
|
#endif // LSCP_PSPLIT_COUNT |
557 |
|
|
558 |
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|
559 |
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// Allocate a parameter list, optionally copying an existing one. |
560 |
|
void lscp_plist_alloc (lscp_param_t **ppList) |
561 |
|
{ |
562 |
|
lscp_param_t *pParams; |
563 |
|
int iSize, i; |
564 |
|
|
565 |
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if (ppList) { |
566 |
|
iSize = LSCP_SPLIT_CHUNK1; |
567 |
|
pParams = (lscp_param_t *) malloc(iSize * sizeof(lscp_param_t)); |
568 |
|
if (pParams) { |
569 |
|
for (i = 0 ; i < iSize; i++) { |
570 |
|
pParams[i].key = NULL; |
571 |
|
pParams[i].value = NULL; |
572 |
|
} |
573 |
|
} |
574 |
|
*ppList = pParams; |
575 |
|
} |
576 |
|
} |
577 |
|
|
578 |
|
|
579 |
|
// Destroy a parameter list, including all it's contents. |
580 |
|
void lscp_plist_free ( lscp_param_t **ppList ) |
581 |
|
{ |
582 |
|
lscp_param_t *pParams; |
583 |
|
int i; |
584 |
|
|
585 |
|
if (ppList) { |
586 |
|
if (*ppList) { |
587 |
|
pParams = *ppList; |
588 |
|
for (i = 0; pParams && pParams[i].key; i++) { |
589 |
|
free(pParams[i].key); |
590 |
|
free(pParams[i].value); |
591 |
|
} |
592 |
|
free(pParams); |
593 |
|
} |
594 |
|
*ppList = NULL; |
595 |
|
} |
596 |
|
} |
597 |
|
|
598 |
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|
599 |
|
// Add an item to a parameter list, growing it as fit. |
600 |
|
void lscp_plist_append ( lscp_param_t **ppList, const char *pszKey, const char *pszValue ) |
601 |
|
{ |
602 |
|
lscp_param_t *pParams; |
603 |
|
lscp_param_t *pNewParams; |
604 |
|
int iSize, iNewSize; |
605 |
|
int i = 0; |
606 |
|
|
607 |
|
if (ppList && *ppList) { |
608 |
|
pParams = *ppList; |
609 |
|
while (pParams[i].key) { |
610 |
|
if (strcasecmp(pParams[i].key, pszKey) == 0) { |
611 |
|
if (pParams[i].value) |
612 |
|
free(pParams[i].value); |
613 |
|
pParams[i].value = strdup(pszValue); |
614 |
|
return; |
615 |
|
} |
616 |
|
i++; |
617 |
|
} |
618 |
|
iSize = LSCP_SPLIT_SIZE(i); |
619 |
|
pParams[i].key = strdup(pszKey); |
620 |
|
pParams[i].value = strdup(pszValue); |
621 |
|
if (++i >= iSize) { |
622 |
|
iNewSize = iSize + LSCP_SPLIT_CHUNK1; |
623 |
|
pNewParams = (lscp_param_t *) malloc(iNewSize * sizeof(lscp_param_t)); |
624 |
|
for (i = 0; i < iSize; i++) { |
625 |
|
pParams[i].key = pParams[i].key; |
626 |
|
pParams[i].value = pParams[i].value; |
627 |
|
} |
628 |
|
for ( ; i < iNewSize; i++) { |
629 |
|
pNewParams[i].key = NULL; |
630 |
|
pNewParams[i].value = NULL; |
631 |
|
} |
632 |
|
free(pParams); |
633 |
|
*ppList = pNewParams; |
634 |
|
} |
635 |
|
} |
636 |
|
} |
637 |
|
|
638 |
|
#ifdef LSCP_PLIST_COUNT |
639 |
|
|
640 |
|
// Compute a parameter list valid item count. |
641 |
|
int lscp_plist_count ( lscp_param_t **ppList ) |
642 |
|
{ |
643 |
|
lscp_param_t *pParams; |
644 |
|
int i = 0; |
645 |
|
if (ppList && *ppList) { |
646 |
|
pParams = *ppList; |
647 |
|
while (pParams[i].key) |
648 |
|
i++; |
649 |
|
} |
650 |
|
return i; |
651 |
|
} |
652 |
|
|
653 |
|
// Compute the legal parameter list size. |
654 |
|
int lscp_plist_size ( lscp_param_t **ppList ) |
655 |
|
{ |
656 |
|
return LSCP_SPLIT_SIZE(lscp_plist_count(ppList)); |
657 |
|
} |
658 |
|
|
659 |
|
#endif // LSCP_PLIST_COUNT |
660 |
|
|
661 |
|
|
662 |
//------------------------------------------------------------------------- |
//------------------------------------------------------------------------- |
663 |
// Engine info struct helper functions. |
// Engine info struct helper functions. |
664 |
|
|
668 |
pEngineInfo->version = NULL; |
pEngineInfo->version = NULL; |
669 |
} |
} |
670 |
|
|
671 |
void lscp_engine_info_reset ( lscp_engine_info_t *pEngineInfo ) |
void lscp_engine_info_free ( lscp_engine_info_t *pEngineInfo ) |
672 |
{ |
{ |
673 |
if (pEngineInfo->description) |
if (pEngineInfo->description) |
674 |
free(pEngineInfo->description); |
free(pEngineInfo->description); |
675 |
if (pEngineInfo->version) |
if (pEngineInfo->version) |
676 |
free(pEngineInfo->version); |
free(pEngineInfo->version); |
677 |
|
} |
678 |
|
|
679 |
|
void lscp_engine_info_reset ( lscp_engine_info_t *pEngineInfo ) |
680 |
|
{ |
681 |
|
lscp_engine_info_free(pEngineInfo); |
682 |
lscp_engine_info_init(pEngineInfo); |
lscp_engine_info_init(pEngineInfo); |
683 |
} |
} |
684 |
|
|
701 |
pChannelInfo->volume = 0.0; |
pChannelInfo->volume = 0.0; |
702 |
} |
} |
703 |
|
|
704 |
void lscp_channel_info_reset ( lscp_channel_info_t *pChannelInfo ) |
void lscp_channel_info_free ( lscp_channel_info_t *pChannelInfo ) |
705 |
{ |
{ |
706 |
if (pChannelInfo->engine_name) |
if (pChannelInfo->engine_name) |
707 |
free(pChannelInfo->engine_name); |
free(pChannelInfo->engine_name); |
709 |
lscp_szsplit_destroy(pChannelInfo->audio_routing); |
lscp_szsplit_destroy(pChannelInfo->audio_routing); |
710 |
if (pChannelInfo->instrument_file) |
if (pChannelInfo->instrument_file) |
711 |
free(pChannelInfo->instrument_file); |
free(pChannelInfo->instrument_file); |
712 |
|
} |
713 |
|
|
714 |
|
void lscp_channel_info_reset ( lscp_channel_info_t *pChannelInfo ) |
715 |
|
{ |
716 |
|
lscp_channel_info_free(pChannelInfo); |
717 |
lscp_channel_info_init(pChannelInfo); |
lscp_channel_info_init(pChannelInfo); |
718 |
} |
} |
719 |
|
|
728 |
pDriverInfo->parameters = NULL; |
pDriverInfo->parameters = NULL; |
729 |
} |
} |
730 |
|
|
731 |
void lscp_driver_info_reset ( lscp_driver_info_t *pDriverInfo ) |
void lscp_driver_info_free ( lscp_driver_info_t *pDriverInfo ) |
732 |
{ |
{ |
733 |
if (pDriverInfo->description) |
if (pDriverInfo->description) |
734 |
free(pDriverInfo->description); |
free(pDriverInfo->description); |
735 |
if (pDriverInfo->version) |
if (pDriverInfo->version) |
736 |
free(pDriverInfo->version); |
free(pDriverInfo->version); |
737 |
lscp_szsplit_destroy(pDriverInfo->parameters); |
lscp_szsplit_destroy(pDriverInfo->parameters); |
738 |
|
} |
739 |
|
|
740 |
|
void lscp_driver_info_reset ( lscp_driver_info_t *pDriverInfo ) |
741 |
|
{ |
742 |
|
lscp_driver_info_free(pDriverInfo); |
743 |
lscp_driver_info_init(pDriverInfo); |
lscp_driver_info_init(pDriverInfo); |
744 |
} |
} |
745 |
|
|
746 |
|
|
747 |
|
//------------------------------------------------------------------------- |
748 |
|
// Device info struct functions. |
749 |
|
|
750 |
|
void lscp_device_info_init ( lscp_device_info_t *pDeviceInfo ) |
751 |
|
{ |
752 |
|
pDeviceInfo->driver = NULL; |
753 |
|
lscp_plist_alloc(&(pDeviceInfo->params)); |
754 |
|
} |
755 |
|
|
756 |
|
void lscp_device_info_free ( lscp_device_info_t *pDeviceInfo ) |
757 |
|
{ |
758 |
|
if (pDeviceInfo->driver) |
759 |
|
free(pDeviceInfo->driver); |
760 |
|
lscp_plist_free(&(pDeviceInfo->params)); |
761 |
|
} |
762 |
|
|
763 |
|
void lscp_device_info_reset ( lscp_device_info_t *pDeviceInfo ) |
764 |
|
{ |
765 |
|
lscp_device_info_free(pDeviceInfo); |
766 |
|
lscp_device_info_init(pDeviceInfo); |
767 |
|
} |
768 |
|
|
769 |
|
|
770 |
|
//------------------------------------------------------------------------- |
771 |
|
// Device channel/port info struct functions. |
772 |
|
|
773 |
|
void lscp_device_port_info_init ( lscp_device_port_info_t *pDevicePortInfo ) |
774 |
|
{ |
775 |
|
pDevicePortInfo->name = NULL; |
776 |
|
lscp_plist_alloc(&(pDevicePortInfo->params)); |
777 |
|
} |
778 |
|
|
779 |
|
void lscp_device_port_info_free ( lscp_device_port_info_t *pDevicePortInfo ) |
780 |
|
{ |
781 |
|
if (pDevicePortInfo->name) |
782 |
|
free(pDevicePortInfo->name); |
783 |
|
lscp_plist_free(&(pDevicePortInfo->params)); |
784 |
|
} |
785 |
|
|
786 |
|
void lscp_device_port_info_reset ( lscp_device_port_info_t *pDevicePortInfo ) |
787 |
|
{ |
788 |
|
lscp_device_port_info_free(pDevicePortInfo); |
789 |
|
lscp_device_port_info_init(pDevicePortInfo); |
790 |
|
} |
791 |
|
|
792 |
|
|
793 |
|
//------------------------------------------------------------------------- |
794 |
|
// Parameter struct helper functions. |
795 |
|
|
796 |
|
void lscp_param_info_init ( lscp_param_info_t *pParamInfo ) |
797 |
|
{ |
798 |
|
pParamInfo->type = LSCP_TYPE_NONE; |
799 |
|
pParamInfo->description = NULL; |
800 |
|
pParamInfo->mandatory = 0; |
801 |
|
pParamInfo->fix = 0; |
802 |
|
pParamInfo->multiplicity = 0; |
803 |
|
pParamInfo->depends = NULL; |
804 |
|
pParamInfo->defaultv = NULL; |
805 |
|
pParamInfo->range_min = NULL; |
806 |
|
pParamInfo->range_max = NULL; |
807 |
|
pParamInfo->possibilities = NULL; |
808 |
|
} |
809 |
|
|
810 |
|
void lscp_param_info_free ( lscp_param_info_t *pParamInfo ) |
811 |
|
{ |
812 |
|
if (pParamInfo->description) |
813 |
|
free(pParamInfo->description); |
814 |
|
lscp_szsplit_destroy(pParamInfo->depends); |
815 |
|
if (pParamInfo->defaultv) |
816 |
|
free(pParamInfo->defaultv); |
817 |
|
if (pParamInfo->range_min) |
818 |
|
free(pParamInfo->range_min); |
819 |
|
if (pParamInfo->range_max) |
820 |
|
free(pParamInfo->range_max); |
821 |
|
lscp_szsplit_destroy(pParamInfo->possibilities); |
822 |
|
} |
823 |
|
|
824 |
|
void lscp_param_info_reset ( lscp_param_info_t *pParamInfo ) |
825 |
|
{ |
826 |
|
lscp_param_info_free(pParamInfo); |
827 |
|
lscp_param_info_init(pParamInfo); |
828 |
|
} |
829 |
|
|
830 |
|
|
831 |
|
//------------------------------------------------------------------------- |
832 |
|
// Concatenate a parameter list (key='value'...) into a string, |
833 |
|
// appending a crlf terminator. |
834 |
|
|
835 |
|
int lscp_param_concat ( char *pszBuffer, int cchMaxBuffer, lscp_param_t *pParams ) |
836 |
|
{ |
837 |
|
int cchBuffer, cchParam, i; |
838 |
|
|
839 |
|
if (pszBuffer == NULL) |
840 |
|
return 0; |
841 |
|
|
842 |
|
cchBuffer = strlen(pszBuffer); |
843 |
|
for (i = 0; pParams && pParams[i].key && pParams[i].value; i++) { |
844 |
|
cchParam = strlen(pParams[i].key) + strlen(pParams[i].value) + 4; |
845 |
|
if (cchBuffer + cchParam + 2 < cchMaxBuffer) { |
846 |
|
sprintf(pszBuffer + cchBuffer, " %s='%s'", pParams[i].key, pParams[i].value); |
847 |
|
cchBuffer += cchParam; |
848 |
|
} |
849 |
|
} |
850 |
|
|
851 |
|
if (cchBuffer + 2 < cchMaxBuffer) { |
852 |
|
pszBuffer[cchBuffer++] = '\r'; |
853 |
|
pszBuffer[cchBuffer++] = '\n'; |
854 |
|
pszBuffer[cchBuffer ] = (char) 0; |
855 |
|
} |
856 |
|
|
857 |
|
return cchBuffer; |
858 |
|
} |
859 |
|
|
860 |
|
|
861 |
// end of common.c |
// end of common.c |