|
| 1 | +/*------------------------------------------------------------------------- |
| 2 | + * |
| 3 | + * ps_status.h-- |
| 4 | + * |
| 5 | + *Defines macros to show backend status on the ps status line. |
| 6 | + *Unfortunately this is system dpendent. |
| 7 | + * |
| 8 | + *------------------------------------------------------------------------- |
| 9 | + */ |
| 10 | + |
| 11 | +#ifndefPS_STATUS_H |
| 12 | +#definePS_STATUS_H |
| 13 | + |
| 14 | +#ifdeflinux |
| 15 | + |
| 16 | +#include<stdio.h> |
| 17 | +#include<string.h> |
| 18 | +#include"utils/trace.h" |
| 19 | + |
| 20 | +externchar*ps_status_buffer; |
| 21 | + |
| 22 | +#definePS_DEFINE_BUFFER \ |
| 23 | +char *ps_status_buffer = NULL; |
| 24 | + |
| 25 | +#definePS_INIT_STATUS(argc,argv,execname,username,hostname,dbname) \ |
| 26 | +{ \ |
| 27 | +inti; \ |
| 28 | +for (i = 0; i < (argc); i++) { \ |
| 29 | +memset((argv)[i], 0, strlen((argv)[i])); \ |
| 30 | +} \ |
| 31 | +ps_status_buffer = (argv)[0]; \ |
| 32 | +sprintf(ps_status_buffer, "%s %s %s %s ", execname, username, hostname, dbname); \ |
| 33 | +ps_status_buffer += strlen(ps_status_buffer); \ |
| 34 | +} |
| 35 | + |
| 36 | +#definePS_CLEAR_STATUS() \ |
| 37 | +{ if (ps_status_buffer) memset(ps_status_buffer, 0, strlen(ps_status_buffer)); } |
| 38 | + |
| 39 | +#definePS_SET_STATUS(status) \ |
| 40 | +{ \ |
| 41 | +if (ps_status_buffer) \ |
| 42 | +{ \ |
| 43 | +PS_CLEAR_STATUS(); \ |
| 44 | +strcat(ps_status_buffer, status); \ |
| 45 | +} \ |
| 46 | +} |
| 47 | + |
| 48 | +#definePS_STATUS (ps_status_buffer ? ps_status_buffer : "") |
| 49 | + |
| 50 | +#else/* !linux */ |
| 51 | + |
| 52 | +externconstchar**ps_status; |
| 53 | + |
| 54 | +#definePS_DEFINE_BUFFER \ |
| 55 | +const char **ps_status = NULL; |
| 56 | + |
| 57 | +#definePS_INIT_STATUS(argc,argv,execname,username,hostname,dbname) \ |
| 58 | +{ \ |
| 59 | +int i; \ |
| 60 | +Assert(argc >= 5); \ |
| 61 | +argv[0] = execname; \ |
| 62 | +argv[1] = hostname; \ |
| 63 | +argv[2] = username; \ |
| 64 | +argv[3] = dbname; \ |
| 65 | +ps_status = (const char **)&argv[4]; \ |
| 66 | +for (i = 4; i < argc; i++) \ |
| 67 | +argv[i] = "";/* blank them */ \ |
| 68 | +} |
| 69 | + |
| 70 | +#definePS_CLEAR_STATUS() \ |
| 71 | +{ if (ps_status) *ps_status = ""; } |
| 72 | + |
| 73 | +#definePS_SET_STATUS(status) \ |
| 74 | +{ if (ps_status) *ps_status = (status); } |
| 75 | + |
| 76 | +#definePS_STATUS (ps_status ? *ps_status : "") |
| 77 | +#endif |
| 78 | + |
| 79 | +#ifdefDONT_HAVE_PS_STATUS |
| 80 | +#definePS_DEFINE_BUFFER |
| 81 | +#define PS_INIT_STATUS(argc, argv, execname, username, hostname, dbname) |
| 82 | +#definePS_CLEAR_STATUS() |
| 83 | +#definePS_SET_STATUS(status) { if ((status)); } |
| 84 | +#definePS_STATUS "" |
| 85 | +#endif/* !linux */ |
| 86 | + |
| 87 | +#endif/* PS_STATUS_H */ |