NCBI C Toolkit Cross Reference

C/access/strucapi.c

  1 /*   strucapi.c
  2 * ===========================================================================
  3 *
  4 *                            PUBLIC DOMAIN NOTICE
  5 *            National Center for Biotechnology Information (NCBI)
  6 *
  7 *  This software/database is a "United States Government Work" under the
  8 *  terms of the United States Copyright Act.  It was written as part of
  9 *  the author's official duties as a United States Government employee and
 10 *  thus cannot be copyrighted.  This software/database is freely available
 11 *  to the public for use. The National Library of Medicine and the U.S.
 12 *  Government do not place any restriction on its use or reproduction.
 13 *  We would, however, appreciate having the NCBI and the author cited in
 14 *  any work or product based on this material
 15 *
 16 *  Although all reasonable efforts have been taken to ensure the accuracy
 17 *  and reliability of the software and data, the NLM and the U.S.
 18 *  Government do not and cannot warrant the performance or results that
 19 *  may be obtained by using this software or data. The NLM and the U.S.
 20 *  Government disclaim all warranties, express or implied, including
 21 *  warranties of performance, merchantability or fitness for any particular
 22 *  purpose.
 23 *
 24 * ===========================================================================
 25 *
 26 * File Name:  strucapi.c
 27 *
 28 * Author:  Jonathan Kans
 29 *
 30 * Version Creation Date:   8/18/00
 31 *
 32 * $Revision: 1.18 $
 33 *
 34 * File Description: 
 35 *
 36 * Modifications:  
 37 * --------------------------------------------------------------------------
 38 * Date     Name        Description of modification
 39 * -------  ----------  -----------------------------------------------------
 40 *
 41 *
 42 * ==========================================================================
 43 */
 44 
 45 #include <ncbi.h>
 46 #include <urlquery.h>
 47 #include <strucapi.h>
 48 
 49 /* low-level connection functions */
 50 
 51 NLM_EXTERN CONN StrucOpenConnection (
 52   Int4 uid
 53 )
 54 
 55 {
 56   Char        query [256];
 57   /*
 58   CONN        conn;
 59   size_t      n_written;
 60   EIO_Status  status;
 61   */
 62 
 63   if (uid < 1) return NULL;
 64 
 65   /*
 66   sprintf (query, "uid=%ld%s", (long) uid,
 67            "&save=asntext&form=6&db=t&Dopt=j&Complexity=Cn3D%20Subset");
 68 
 69   conn = QUERY_OpenUrlQuery ("www.ncbi.nlm.nih.gov", 80, "/Structure/mmdb/mmdbsrv.cgi",
 70                              NULL, "Entrez2Tool", 30, eMIME_T_NcbiData,
 71                              eMIME_WwwForm, eENCOD_Url, 0);
 72  
 73   status = CONN_Write (conn, (const void *) query, StringLen (query), &n_written);
 74   if (status != eIO_Success) {
 75     CONN_Close (conn);
 76     return NULL;
 77   }
 78 
 79   return conn;
 80   */
 81 
 82   sprintf (query, "uid=%ld%s", (long) uid,
 83            "&save=asntext&form=6&db=t&Dopt=j&Complexity=Cn3D%20Subset");
 84   return QUERY_OpenServiceQuery ("StrucFetch", query, 30);
 85 }
 86 
 87 NLM_EXTERN BiostrucSeqPtr StrucWaitForReply (
 88   CONN conn
 89 )
 90 
 91 {
 92   BiostrucSeqPtr  bsp = NULL;
 93   time_t          currtime, starttime;
 94   time_t          max = 0;
 95   EIO_Status      status;
 96   STimeout        timeout;
 97 
 98   if (conn == NULL) return NULL;
 99 
100 #ifdef OS_MAC
101   timeout.sec = 0;
102   timeout.usec = 0;
103 #else
104   timeout.sec = 100;
105   timeout.usec = 0;
106 #endif
107 
108   starttime = GetSecs ();
109   while ((status = CONN_Wait (conn, eIO_Read, &timeout)) == eIO_Timeout && max < 300) {
110     currtime = GetSecs ();
111     max = currtime - starttime;
112 #ifdef OS_MAC
113     QUERY_WaitForNextMacEvent ();
114 #endif
115   }
116   if (status == eIO_Success) {
117     /*
118     {
119       FILE *fp = FileOpen ("dummy", "w");
120       QUERY_CopyResultsToFile (conn, fp);
121       FileClose (fp);
122     }
123     */
124     bsp = StrucReadReply (conn, status);
125   }
126   CONN_Close (conn);
127 
128   return bsp;
129 }
130 
131 /* high-level connection functions */
132 
133 NLM_EXTERN BiostrucSeqPtr StrucSynchronousQuery (
134   Int4 uid
135 )
136 
137 {
138   BiostrucSeqPtr  bsp;
139   CONN            conn;
140 
141   conn = StrucOpenConnection (uid);
142 
143   if (conn == NULL) return NULL;
144 
145   QUERY_SendQuery (conn);
146 
147   bsp = StrucWaitForReply (conn);
148 
149   return bsp;
150 }
151 
152 NLM_EXTERN Boolean StrucAsynchronousQuery (
153   Int4 uid,
154   QUEUE* queue,
155   QueryResultProc resultproc,
156   VoidPtr userdata
157 )
158 
159 {
160   CONN  conn;
161 
162   conn = StrucOpenConnection (uid);
163 
164   if (conn == NULL) return FALSE;
165 
166   QUERY_SendQuery (conn);
167 
168   QUERY_AddToQueue (queue, conn, resultproc, userdata, TRUE);
169 
170   return TRUE;
171 }
172 
173 NLM_EXTERN Int4 StrucCheckQueue (
174   QUEUE* queue
175 )
176 
177 {
178   return QUERY_CheckQueue (queue);
179 }
180 
181 NLM_EXTERN BiostrucSeqPtr StrucReadReply (
182   CONN conn,
183   EIO_Status status
184 )
185 
186 {
187   AsnIoConnPtr     aicp;
188   BiostrucSeqPtr   bsp = NULL;
189   NcbiMimeAsn1Ptr  nmap = NULL;
190 
191   if (conn != NULL && status == eIO_Success) {
192     aicp = QUERY_AsnIoConnOpen ("r", conn);
193     nmap = NcbiMimeAsn1AsnRead (aicp->aip, NULL);
194     QUERY_AsnIoConnClose (aicp);
195     if (nmap != NULL && nmap->choice == NcbiMimeAsn1_strucseq) {
196       bsp = (BiostrucSeqPtr) nmap->data.ptrvalue;
197     }
198   }
199   return bsp;
200 }
201 
202
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